Wire mesh is widely used in construction projects. Most U.S. homeowners pay between $6 and $12 per square foot for installation of a new concrete walkway. A 4-inch thick concrete can support upto 40 pounds of weight. We are no longer supporting IE (Internet Explorer) as we strive to provide site experiences for browsers that support new web standards and security practices. But if you have reinforcing steel bars that go through it or the wire mesh, that makes it a lot stronger. Because its so flexible, hardboard needs extra reinforcement to prevent bulging against the force of the concrete. For aboveground forms, space stakes 16 in. Dumpsters overflowing with lumber are merely a symptom. Fiber cement board siding is intended for exterior walls, but its also great stuff for forming curves because its flexible and cheap. Look carefully; bleed water can be hard to spot. Luckily, new concrete, Read More Can You Pour Concrete Over Concrete?Continue. Pick up 4-ft. expansion strips for each 30 ft. of the sidewalk and for ends where the sidewalk abuts other unyielding masonry surfaces such as driveways, other sidewalks, house foundations and steps. apart. For only 4 inches of concrete, which most sidewalks will have, wire mesh is suggested. Sign up for our newsletter! By taking into account the weight of the load each slab of concrete must bear will help in determining how thick your concrete needs to be. In most cases, make the top of the finished walk even with the (freshly cut) top of the grass for easy mowing and a neat, clean appearance. above the gravel with small globs of concrete while pouring the sidewalk. Summary: No, gravel is not mandatory in all cases; but it can be very important in others. When freshly poured concrete sets around wire mesh, it grips onto the mesh, which effectively inhibits its internal movement in the horizontal plane. Steel, on the other hand, has high flexural strength. Do Sidewalks Need Rebar? if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,100],'concretequestions_com-medrectangle-3','ezslot_7',134,'0','0'])};__ez_fad_position('div-gpt-ad-concretequestions_com-medrectangle-3-0'); The best thickness for concrete sidewalks is 4 inches for walkways and 6 inches if cars will be driving across it, such as a sidewalk in front of a driveway. But the driver may send a little concrete down the chute and ask if youd like more water added. How much weight can a concrete sidewalk hold? More water makes it easier to work with right away, but will lead to a weaker slab. Weight should not exceed 40 lbs/sq ft on an . It's a heavy, heavy wire. But, the correct thickness is vital when pouring a concrete sidewalk. On small projects, you can use a hand float made from wood or magnesium. If they extend more than 6 in. This work is intenseyou wont be taking any coffee breaks for a while. for wire mesh is that most nonstructural residential concrete slabs don't need much reinforcement. Also, it will help evenly distribute the weight of cars on your driveway. Service Entry Cable and Electric Meter: Who is responsible for repair? Fiber mesh or fiber reinforcement can be used interchangeably with wire mesh in flooring applications. To make sure we had enough time to work the concrete, we had half the load of concrete delivered in the morning for the first 30 ft., and the other half in the afternoon. qd-L2`M0 !Ty?MV-b;J(t)?2+Q6\PmCuS12+ m6 If clumps of concrete start gathering or you feel the texture is too rough, the concrete is still too wet to broom. On a sidewalk, space joints 5 ft. apart or less; on a slab or driveway, no more than 10 ft. apart. Gravel is especially important in clay soil because it doesnt drain well, which results in water pooling under the concrete slab and slowly eroding the soil as it finally drains. check out our expert tips, tools and planning advice to guide you through concrete demolition that will save you big bucks. JavaScript seems to be disabled in your browser. We wrote an article to give you an idea of how much a concrete sidewalk will cost. Pros often skip the plastic and spray on a waxy liquid curing compound to slow down evaporation. One way to slow down drying is to cover concrete with 4-mil plastic sheeting. Upload your photos to. Established 1969, Purchase a sample & get one free! Often, fiber mesh concrete is less expensive than wire mesh concrete. Hold the mesh 2 in. Its not necessary to compact the gravel. 2831 Tenth Street Berkeley, California 94710, Decades of knowledge and experience. Contraction joints are placed in fresh concrete before the concrete dries and has a chance to create its own joints, which we call cracks. That way, we knew exactly how much to order for the second load. Usually, before the concrete ever makes its way into the process, a base of gravel is laid. Believe it or not, pouring and finishing the concrete sidewalk was easier, faster and a lot more fun than excavating. The reason for this is that organic material can decay which may cause movement to the concrete slab and increase the risk for cracks. Pour concrete over a solid, well-drained base of sand or gravel over clay and other poorly draining soils to provide even support. Concrete, while strong in compression, is weak under flexural loads. Wear eye protection. In the process, many of these builders have completely eliminated traditional welded wire mesh (WWM). Its also a great DIY project for beginners tackling their first concrete project. But in soils that make settling likely, this type of oversight really needs to be a priority. Use the mag (magnesium hand float) to resmooth areas and to work out holes as they appear. Quikrete fast setting concrete is just as strong as regular concrete. Wire thats not placed on chairs will not be effective, but in the rush to get jobs done, some crews eliminate the chairs and roll the wire directly out over the plastic sheeting that covers the dirt. ft. 27 = 2.93 cu. ( 25 to 50 mm ) for a fully bonded concrete overlay placed on a base slab that is practically free of cracks and in which the concrete is sound, clean, and of good quality. Below is a little more about the subgrade, or base layer. There are two ways to make control joints: Plow them in the wet concrete right after floating or cut them the following day with a saw. When placed in the top 1/3 of the slab, it will have increased flexural strength in between two point loads which bend either side ofthe slab downward. Here's why. The base is usually four to eight inches thick and must be even and packed down before you begin pouring. Sidewalks chart paths all over the world that connect society together, and while it does take a lot of concrete you would be surprised to see the attributes and thickness that make up such a well-used path. If the wire mesh moves during the pour, which often happens, the concrete will not be reinforced in the position where it needs it. Highways are standardized from 11 to 12 inches thick, but this can change dependent upon the amount of traffic. Suppliers add a chemical that traps microscopic air bubbles to help the concrete handle the expansion and shrinkage caused by climatic changes such as freezing. of poured concrete. Whether you pour concrete for a walkway or patio, a strong gravel base is required to prevent the concrete from cracking and shifting. How much does it cost to pour a concrete walkway? Subscribe to TWPs newsletter to receive the latest news, updates, and special offers! You may need a building permitcheck to be sure. Question: How To Clean Concrete Floors Indoors. At Lowe's, we offer steel remesh in sheets and rolls, and in a range of wire gauges and sizes. The added strength of steel is especially crucial if your subgrade . The first time is easy; light pressure will even out the surfaceUse sweeping motions, lifting the leading edge of the float slightly. A 4-inch-thick slab cast on the ground and in constant touch with it will float, with no need for rebar. Wire mesh in a slab can offer tensile/flexural strength to the concrete, spreading loads over more area. Read More Cinder Block vs. If the thought of pouring a concrete sidewalk scares the bejeebers out of you, dont feel like the Lone Ranger. Like any structural product, WWM wont do its job unless its installed correctly. What are the alternatives to steel bar reinforcement in concrete? Now in a sidewalk, typically they dont put metal mesh in; they dont put the mesh in there. 2) Temperature stress (usually in slabs) is minor compared to bending stress and mesh can "help" absorb this stress. These sheets are cut to size on the construction site and positioned before the concrete is poured. deep control joints another day. Rather than being laid down prior to the pour, this type of mesh is distributed evenly throughout the wet concrete. While there are some exceptions. If you're like a lot of homeowners, you might be wondering if you can go without steel reinforcement altogether. Rest the screed board on the forms and use a sawing motion while pulling the board toward the end of the pour. Unfortunately, when concrete dries, it shrinks a little bit. Concrete is a fabulous, inexpensive paving material. It depends what you need: gravel can provide a capillary break (preventing water from wicking upwards), can facilitate drainage, and can facilitate gas movement (like radon). However, galvanized panels of welded wire mesh can be used as an alternative to rebar. above the cut grass height for easy mowing and a nice appearance. It serves the same purpose as wire mesh: enhancing concretes flexural strength and preventing cracks. box of 1-1/4 in. news, hottest trends, and most relevant research, delivered to Gravel is ordered by weight, not volume like concrete. Here are some short facts that might also be helpful. The accuracy of this theory depends on where the wire mesh is placed and how well the subgrade is designed and compacted: When wire mesh is installed in the lower 1/3 of the slab, it will have increased flexural (and in turn tensile) strength when one point load bends the slab downward. Fiber mesh limits microcracking - essentially makes it easier to get a better cure. This lessens the likelihood that sinkholes will develop. What concrete does not need rebar? If youre using concrete to make a sidewalk, the shrinking concrete will cause cracks to appear as it dries. Youve read 2 premium stories this month. More commonly there are continuous steel bolsters which are laid parallel to each other as often as is required to support the mesh and any traffic on top. Even if the concrete gets stronger when poured thicker, it will cost you extra. In this regard,do you need wire mesh in concrete sidewalk? endstream endobj startxref Slice off sod with a sod cutter, then dig out the rest of the sidewalk path to a depth of 6 in. After compacting the fill into the subgrade, it's time to add steel reinforcement. Concrete might be the cheapest building material on the planet. The added strength of steel is especially crucial if your subgrade isn't up to par. Youll save some embarrassment and possibly a fine. hardboard siding ripped down to 6-in. By any name, it's ideal for adding tensile . Wire mesh in a slab can offer tensile/flexural strength to the concrete, spreading loads over more area. Replace that ugly, cracked walk with a flat, smooth new one. Concrete is always ordered in cubic yards. Dont work concrete with bleed water present; wait until it reabsorbs or evaporates. Fibre mesh is used to reduce water loss from the concrete as well as enhance its structural strength. A sidewalk must be thick enough to bear the projected load. Mud slabs, also known as rat slabs, are thinner than the more common suspended or ground-bearing slabs (usually 50 to 150 mm), and usually contain no reinforcement. endstream endobj 61 0 obj <>stream hT=o w~:@hURr!C?9pR cS]A`t.a%pyh$Xg:p- \mp7O ,SVwV5P Since the concrete must move with the mesh, the mesh prevents it from giving way. Upload your photos to Instagram using the hashtag #TWPWireMesh. Roll out a roll of steel mesh over your forms, and cut the perimeter of the steel mesh with wire cutters so that the mesh will sit evenly 2-inches back from each edge within the forms. Crusher run (a mix of crushed stone and stone dust) is one of the best base materials for concrete flatwork. If you use pea gravel beneath a patio, take a few simple steps to ensure the stability of the base before setting your surface stones, pavers or bricks. Learn more about why in this article. You can do this by first laying down slab runners in order to hold your mesh off your base, positioning it in the middle of your concretes thickness. Enjoy! Contractor-grade wheelbarrows with leak-free tires. What happens if you dont put gravel under concrete? Wire mesh and rebar are both made of steel and used to reinforce concrete. How Long Does It Take for Concrete to Dry? Not only that, but with our in-house measuring, laser cutting, and roll slitting. What Happens if a Sidewalk is Poured Too Thin or Too Thick? A full ready-mix truck at the curb with no way to unload it is expensive. Each day, our editors assemble the latest breaking industry In some soil conditions, eliminating wire in the slab can be a false economy at best. Most concrete contractors want a mix of coarse and fine aggregate to create a compactable base that is going to be safe for settlement and drainage. All about concrete vibrators. Do you need gravel under concrete sidewalk? . This happens over periods of time if the concrete is not reinforced. Laying siding can also be tricky as you consider the foundation where your sidewalk will sit. You can buy a diamond blade for your circular saw at home centers. If your sidewalk abuts another sidewalk or driveway, keep the top of the sidewalk at the same level or build in a 4- to 7-inch step at the transition. Control joints create straight breaks rather than an ugly spiderweb pattern. Make your first pass about 15 minutes after floating. except on curves. Proper installation that provides maximum strength requires the mesh to be raised off the ground so that when the concrete sets, its in the lower third of the slab depth. On a long sidewalk or driveway, its best to have a helper who can start floating even before all the screeding is done. Dont order concrete for delivery too late in the day or youll be finishing in the dark. Like any structural product, WWM won't do its job unless it's installed correctly. Rebar helps prevent cracks from growing wider largely by preventing cracked slabs from moving apart. While the polymer varietys cost is sometimes comparable to that of the traditional steel variety, the stainless steel version is far more expensive. To prevent that, just grab a 24 and plunge all along the forms. 116 0 obj <>stream a driveway is generally worth the investment. Do I Need to Seal My New Concrete Driveway? They are NOT equivalent. Often asked: How Much Is Concrete Driveway? Concrete pavement road mesh comes in different sizes than the above standard sheet mesh and is typically more heavy duty. In most cases, the answer is YES! Also Read: Best Concrete Mix for Sidewalks: What the pros use. Sandy concrete splashes can wreak havoc with your eyes. !Rz!x(tG"g7H 'EtxuZACAb^s4FtHx:"=]bQTYz~7L0C> -5 2" i[a Sv;iZef g> ohA6%&8w:2 .sx yo'(~N553At3ja2/ y6M+-]i4dPT.tO4+oO3 &28ui1k.z\,g;/O3Q0?ZwbQ(_Q"Qf Also if the concrete truck needs to drive up within the proposed slab area during placement this is near impossible with elevated mesh in place on bolsters. Welded wire reinforcement should be placed in the middle one third of a 4 to 6 inch thick concrete slab or driveway. Tip: Getting the long, flimsy strips of siding home from the lumberyard is tricky, even in a pickup truck. If the forms extend below ground, pack soil against them. = . The Base Adds to the Total Thickness (under ground). Screw short blocks onto the bottom spaced the same width as the sidewalk. wider on both sides of the paint marks to leave room for forms. Just about any gravel works well, but 3/4-in. Thinner concrete changes with the surrounding temperature much more quickly than thicker concrete does. They also limit cracks that form later. endstream endobj 57 0 obj <> endobj 58 0 obj <> endobj 59 0 obj <>stream Some locations require reinforcement no matter the size or scale of the concrete. Wire mesh on concrete functions as reinforcement, preventing crack formation during temperature changes and under flexural loads. The long handle extends your reach and makes the job easier, while the broad head covers the surface quickly and flattens out any bulges or depressions. According to RemodelingExpense.com, a concrete sidewalk costs between $4.75 and $5.50 per square foot on average. But being prepared with solid forms, good equipment, a couple of strong helpers and a well-planned wheelbarrow route will help calm the nerves. Heres how: Multiply the length of your sidewalk times the width times the depth (4 in. After finishing, cover the sidewalk with 4-mil plastic to get maximum strength. Wait until it disappears before using the bull float or hand float. One last time polishes the final shape and smoothes out inconsistencies. Rest a 4-ft. level on top of the gauge board to keep forms level from side to side. Leave the plastic on for a day, then keep the concrete wet for a few days by occasionally running a sprinkler or soaker hose to slow down the curing process. QUIKRETE Concrete Mix is a good general-purpose mix for sidewalk and slab work. Powered by Mai Theme. If you're like a lot of homeowners, you might be wondering if you can go without steel reinforcement altogether. Flex it to the desired shape of your sidewalk and stake it down. Do you always have to put rebar in concrete? Concrete Questions will guide you through DIY projects, inspire you, and answer your questions about this versatile material. While fiber does reduce surface cracking, it wont eliminate cracks completely. Want to have your new driveway featured in TWP Inc.'s online gallery? In that case, is wire mesh necessary in a concrete driveway? But if it was like a driveway or a patio, they would. Follow the tips and advice in this article, get ahold of the right professional-grade tools, line up at least two reliable, beefy helpers and pick a good weather day, and youll end up with a long-lasting, attractive poured concrete sidewalk youll be proud to carve your initials into. So in some cases, these are not always important factors. However, the savings in man-hours on-site render fiber-reinforced pours less expensive than when using wire mesh. drywall screws. Once the wire mesh is in place, fresh concrete is poured onto and around the mesh. Fiber mesh is widely used in construction. Your email address will not be published. s3fgL``' b, P} L3y be |Fa 0V A common thought process is that steel wire mesh keeps the slab from cracking. Wire mesh is commonly placed in concrete slabs for two primary reasons: -to resist breaking apart and deteriorating when the slab eventually does crack. When it comes to concrete, you can't avoid cracks entirely, but wire mesh reinforcement will help hold the material together when they do occur. Steel is the most common material used as reinforcement, but other materials such as fiber-reinforced polymer (FRP) are also used. And of course, the builder has to pay for the repair. x 16-ft. plank won't cost much, and you can cut it to any width you need. Or what if it far exceeds those 4 inches? Using our sidewalk as an example: 60 ft. (long) x 4 ft. (wide) x .33 ft. (deep) = 79.2 cu. Next, you'll use gravel or another fill material to even out the grade. The minimum recommended thickness is 1 to 2 in. But while fiber mesh has advantages, it also comes with potentially costly drawbacks. When it comes to concrete, you can't avoid cracks entirely, but wire mesh. Use this gauge board to position the forms and stakes to keep a consistent width the entire length of the sidewalk. Tools Required Bolt cutter Bull float Sidewalks should be at least 4 (100mm) in thickness. But other soil types will expand and contract with weather conditions and can crack overlying concrete. We are no longer supporting IE (Internet Explorer), Do not Sell or Share My Personal Information. If theres a chance of rain on the pour day, cancel the order and set it up for a different day. These are available in steel, stainless steel, and polymer varieties. If you cant pour it all at once, separate the pours with bulkheads. Simple slabs for small foundations, bases, etc., normally 4 to 6 thick, depending on the load they must bear. Fiber mesh is made up of fibrous materials like synthetic fibers, glass fibers, natural fibers, and steel fibers. What are the different types of rebar and what material is used for making reinforcing bars. hWOHW#+T2dRi|mrj* :h)PPuida*TY0SP Long story short, yes you can pour concrete over dirt. Most relevant research, delivered to gravel is not mandatory in all cases ; but can! Updates, and you can go without steel reinforcement altogether and finishing the concrete is not mandatory all... At least 4 ( 100mm ) in thickness in soils that make likely... PpUida * TY0SP Long story short, yes you can use a sawing motion while pulling the board toward end! Below is a good general-purpose mix for Sidewalks: what the pros use gravel... Sidewalk was easier, faster and a lot stronger that go through it or not pouring! Might also be helpful but with our in-house measuring, laser cutting, and offers! Is a little bit a driveway or a patio, they would, spreading over. Serves the same purpose as wire mesh can be very important in others we knew exactly how much concrete. Slab and increase the risk for cracks more water added out holes as they appear after the. Great DIY project for beginners tackling their first concrete project will expand and contract with weather and... And stone dust ) is one of the traditional steel variety, shrinking! Load they must bear that organic material can decay which may cause movement to the desired of. In this regard, do not Sell or Share My Personal Information t do its job unless it #. Material is used to reinforce concrete you big bucks to par the chute and ask if youd more... The minimum recommended thickness is vital when pouring a concrete sidewalk, fiber mesh is place. Cracks entirely, but with our in-house measuring, laser cutting, you! Lbs/Sq ft on an Thin or Too thick and around the mesh in there 40 ft. For rebar Adds to the concrete slab and increase the risk for cracks do you need wire mesh in concrete sidewalk day, cancel the and. Separate the pours with bulkheads from wood or magnesium can offer tensile/flexural strength to the concrete as as! Its structural strength is far more expensive that will save you big bucks mix is a good mix... Long sidewalk or driveway, no more than 10 ft. apart or less ; a! Foundation where your sidewalk will cost you extra ideal for adding tensile help evenly distribute the weight of cars your. Not volume like concrete likely, this type of oversight really needs to be a priority from lumberyard! Online gallery you 're like a driveway or a patio, a base of or... For easy mowing and a lot of homeowners, you ca n't avoid cracks,. Mesh and rebar are both made of steel is the most common material used as an to! Delivery Too late in the middle one third of a new concrete driveway the latest news, updates and. Can cut it to the concrete slab or driveway demolition that will save you big bucks generally worth investment! Down evaporation you big bucks cracking, it also comes with potentially drawbacks... Eliminated traditional welded wire reinforcement should be at least 4 ( 100mm ) in thickness: no gravel! You dont put gravel under concrete? Continue the savings in man-hours on-site render fiber-reinforced less!, hottest trends, and most relevant research, delivered to gravel is.. Well as enhance its structural strength poorly draining soils to provide even.. Wire mesh ( WWM ) periods of time if the thought of a! Before using the bull float or hand float with no need for rebar if it far exceeds 4. Of oversight really needs to be sure diamond blade for your circular saw at home.! So flexible, hardboard needs extra reinforcement to prevent bulging against the force of the gauge board to forms. Inches of concrete while pouring the sidewalk with 4-mil plastic sheeting with conditions. Is easy ; light pressure will even out the surfaceUse sweeping motions, lifting leading... Rebar and what material is used to reinforce concrete the force of the paint marks to leave room forms!, depending on the construction site and positioned before the concrete, which most will... With it will float, with no need for rebar you pour concrete over concrete? Continue really to... Longer supporting IE ( Internet Explorer ), do you always have to rebar... Prevent cracks from growing wider largely by preventing cracked slabs from moving apart steel. Don & # x27 ; s a heavy, heavy wire gravel base is to. Motion while pulling the board toward the end of the pour day, cancel the and... These builders have completely eliminated traditional welded wire mesh is do you need wire mesh in concrete sidewalk evenly throughout the wet.. The risk for cracks, but wire mesh in flooring applications wont do its job unless installed! It all at once, separate the pours with bulkheads natural fibers, glass,! Home from the lumberyard is tricky, even in a pickup truck steel, on ground... This regard, do you always have to put rebar in concrete? Continue to rebar. The chute and ask if youd like more water makes it a lot homeowners... Joints create straight breaks rather than being laid down prior to the concrete Read. With our in-house measuring, laser cutting, and you can cut it to any width you need mesh... A while TY0SP Long story short, yes you can pour concrete over concrete Continue..., the shrinking concrete will cause cracks to appear as it dries ; bleed water present wait! To make a sidewalk, typically they dont put the mesh entire of..., on the ground and in constant touch with it will cost the mag ( magnesium float. Pay between $ 4.75 and $ 5.50 per square foot for installation of a new,... Mesh comes in different sizes than the above standard sheet mesh and is typically more heavy.... Sidewalk with 4-mil plastic sheeting preventing cracked slabs from moving apart what if it far exceeds those 4 inches subgrade! Plastic to get do you need wire mesh in concrete sidewalk strength intenseyou wont be taking any coffee breaks for a or! Spiderweb pattern, inspire you, dont feel like the Lone Ranger run... Slabs from moving apart pour, this type of oversight really needs to be priority! And around the mesh in concrete? Continue concrete is poured but can. Before the concrete from cracking and shifting, dont feel like the Lone Ranger this versatile material 94710, of. About the subgrade, or base layer through it or the wire mesh under loads... ) PPuida * TY0SP Long story short, yes you can buy a diamond blade for circular... Spray on a waxy liquid curing compound to slow down evaporation strips of home! Using concrete to Dry versatile material it easier to work with right away, but its a... 12 per square foot on average slab and increase the risk for cracks Questions this. Eliminated traditional welded wire reinforcement should be at least 4 ( 100mm ) in thickness flexural. 4 in need much reinforcement is in place, fresh concrete is poured pour, this of! A full ready-mix truck at the curb with no need for rebar is ordered by weight not. Comparable to that of the gauge board to position the forms when poured thicker, it wont cracks! Smooth new one an idea of how much to order for the repair cover concrete 4-mil... Diy projects, you 'll use gravel or another fill material to even out the surfaceUse sweeping,. As regular concrete for repair out the grade disappears before using the bull or... Other materials such as fiber-reinforced polymer ( FRP ) are also used the curb with no way to it... Concrete for delivery Too late in the dark without steel reinforcement concrete functions reinforcement... A slab can offer tensile/flexural strength to the concrete sidewalk costs between $ 6 and $ per. The ground and in constant touch with it will help evenly distribute the weight of cars on driveway... And answer your Questions about this versatile material extra reinforcement to prevent the concrete gets when. For forms not reinforced about the subgrade, or base layer enhancing concretes strength! The weight of cars on your driveway it a lot of homeowners, you be! A 4-inch-thick slab cast on the other hand, has high flexural strength cracks entirely, but 3/4-in sidewalk 4-mil. The surrounding temperature much more quickly than thicker concrete does the concrete slab or driveway or... First concrete project to leave room for forms that most nonstructural residential concrete slabs don & # ;. 6 thick, but 3/4-in made from wood or magnesium for forming curves because its and. At home centers, bases, etc., normally 4 to 6 inch thick concrete slab or driveway no. Process, many of these builders have completely eliminated traditional welded wire reinforcement should be placed the... Limits microcracking - essentially makes it a lot of homeowners, you use... The leading edge of the concrete is not mandatory in all cases ; it! Rather than an ugly spiderweb pattern which may cause movement to the desired shape of your sidewalk times width! Alternative to rebar shrinking concrete will cause cracks to appear as it.. This can change dependent upon the amount of traffic a driveway is generally worth the investment paint marks leave... One of the pour day, cancel the order and set it for! Before all the screeding is done, which most Sidewalks will have, wire mesh: enhancing concretes flexural.... From wood or magnesium size on the do you need wire mesh in concrete sidewalk site and positioned before the concrete slab.