which acid is used to dissolve cement, and why? - quora,concrete continuously gets harder the longer it sits, forever. so if you are needing to do something to 80 year old concrete, you may want some power tools. if you’re removing a discrete chunk, or making a hole, you may need a grinder with a diamond blade to make some cuts in order to make the material easy to break, or use a jackhammer..install a water powered sump pump | doityourself.com,step 2 - installing the water powered sump pump. use the jackhammer to break out the concrete at the lowest point on the floor. make the opening near an exterior wall. cut out a section which is 6-inches wider than the pit liner. the depth of the pit should be equal to that of the liner. fit the liner in the pit and fill it with gravel..how to dig a ditch in rocky ground,obviously the bigger person should go with the pickaxe as to break the most rocks. 3. if you have a decent budget, a pretty big job to do, or just have rocks that feel like concrete, a jackhammer may be in order. jackhammers usually cost at least $400 dollars so consider hiring help with a pickaxe before going off and buying one..community | love that house,breaking up the freakishly thick concrete and hauling it to a pile with a wheel barrow. check out the bottom of the five to six inch thick concrete. it’s not gravel as you might expect, but large river-rock-sized chunks! for weeks, billy and michael slaved and slaved with jackhammer and wheelbarrow..
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it is believed that it is easy to prepare concrete during construction with your own hands. the components are well known - portland cement as a binder, sand and gravel as a filler. we’ll clarify: if it is necessary to obtain a material with improved heat and noise insulation properties, porous aggregates (expanded clay, perlite, etc.) are used.
your driveway should be composed of various layers of gravel, but unless each layer is compacted, the driveway will not retain its shape. each layer should be about four inches thick and should have gravel pieces smaller than those of the layer below it. compact individual layers as you lay them down by tamping with a machine or hand-operated roller.
removing cement or concrete marks from a resin bound driveway. cement or concrete marks can be removed with careful use of diluted hydrochloric acid or a proprietary cement remover, immediately followed by a thorough rinsing with clean water. please note that if a lime-based aggregate is used, the acid will tend to dissolve this as well.
concrete - wikipedia concrete, usually portland cement concrete, is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens over time—most frequently a lime-based cement binder, such as portland cement, but sometimes with other hydraulic cements, such as a calcium aluminate cement.
or sawdust. these are all concrete, full stop. in modern building codes and textbooks concrete is defined as portland cement with aggregates, be they sand, gravel, crushed stone, or other aggregates. but in reality concrete is any binder - be it clay, lime, gypsum, or portland cement (or natural cements) with aggregate - be it sand and gravel
it is also fairly straightforward to lay concrete edging on gravel driveways. idea 3: brick edging. brick is one of the best ways to add style and security to a drive, whilst still being amongst the top cheap gravel driveway edging ideas. bricks can be purchased new for a relatively low price, but they are often even cheaper if they are reclaimed.
gravel for driveways. the term gravel can refer to any loose rock or stone that is larger than sand but smaller than cobble, which means it can range from about 1/10 inch to 2 1/2 inches in diameter. the gravel used for driveways is typically a processed product that consists of rocks, sand, and clay.
easily remove concrete from your tools and equipment with mean klean 22 oz. concrete & mortar dissolver. the advanced liquid formula dissolves and physically breaks down concrete by attacking the portland cement, eventually reducing it to mush that is easy to clean off with a hose or pressure sprayer.
there are a variety of sakrete concrete repair products available to fix concrete that has begun to deteriorate. however, without good surface preparation, none of them are going to perform satisfactorily. all loose sand, gravel, dirt, leaves etc. must be removed. this can typically be done with a garden hose and a good nozzle.
· when laying your gravel driveway opt for a gravel paving grid. gravel paving grids provide a stable base for your gravel and reduce the risk of slipping. the gravel paving grids are simple and easy to use, simply lay the gravel grids down on your surface and join them together. you should then fill the grids with your chosen gravel.
how to's & quick tips; 5 ways to prevent cracks in concrete—and 1 easy fix. even if it's your first concrete project, you can ensure a long-lasting, professional finish by steering clear of a
there are four materials commonly used for driveways – gravel, asphalt, concrete and pavers. which one you choose will be based on your budget, your climate and conditions and the length of your driveway. gravel driveways are hands-down the most affordable option upfront. asphalt driveways place second in cost, followed by cement and pavers.
the total cost…. this first section (approximately 1,000 ft and 11 or 12 ft wide) is made out of 64 tons of crushed concrete. at a rate of $6 a ton, we paid $384 for the materials at that point. compare it to $18 a ton for gravel making it $1,152 and we are talking serious saving here.
generally, the 1pt cement : 2pt sand ratio is best and will have a 3500 psi compression stress. a 1:3 ratio will have less than 3000 psi. gravel can actually strengthen the mix... up to 3 parts. the mix of choice (concrete) is 1pt cement :2pt sand : 3pt gravel, because it's the best/hardest (for the money).
concrete is made up of three basic components: water, aggregate (rock, sand, or gravel) and portland cement. cement, usually in powder form, acts as a binding agent when mixed with water and aggregates. other items that might be of interest to you include concrete basics such as mix design, and cement
laying the gravel. now the easy bit, the finished surface. the biggest mistake made by diyers is laying the gravel too deep. the gravel performs no other purpose than to provide a decorative finish to the driveway. laying the gravel too deep not only costs more and takes longer but has no benefit to the performance of the finished driveway.
following right behind the wheel-barrows, crew members with wooden lutes spread the stone over the tar, making an even layer about a half inch thick. this step must be done quickly, before the tar cools. stones that fall outside the driveway's edge should be raked or swept back. step 4.
what is asphalt cement? asphalt cement, the binder that holds together the sand and gravel in blacktop, is a unique material in that it possesses qualities of both a solid and a liquid. any chemist will tell you that asphalt is much like glass. both will succumb to the pull of gravity, albeit it takes years to see it happen.
apr 22, 2021 - explore carol jyliano's board 'concrete repair' on pinterest. see more ideas about concrete, concrete repair products, concrete resurfacing.
how to resurface pea gravel concrete ehow when pea gravel concrete becomes exceptionally cracked, faded or worn down, resurfacing is a task that can restore the concrete to its best look without professional help step 1 run over the entire concrete surface with a push broom to remove
step 3: calculate cubic yardage of gravel needed for each driveway layer. having cleared a path for the gravel driveway, now you need to calculate the volume of stones you’ll need.
the most effective — and most expensive — way to control dust on gravel driveways is to treat the gravel with something that will either absorb water or make the dust denser. salts, like calcium chloride, will absorb water from the air and from under the road, keeping the top of the gravel driveway damp and thereby reducing the amount of dust.
recycled concrete can easily be used for other construction projects and can even be ground finely to serve as gravel and re-installed into driveway and patios. by recycling your concrete with local concrete contractors or masons, you’re also giving back to smaller businesses within your city, which can significantly help any contractor reduce supply costs to fulfill their projects.
the asphalt binder (black tar) used to make the asphalt is only so flexible as far as temperature change (i.e. high temperature to low temperature). because of the extreme cold and possibility of low, frigid temperatures in the winter we must use an asphalt binder that can withstand below zero temperatures without cracking and becoming brittle.
to make a gravel driveway, first dig out any grass and topsoil and level the surface. then compact the dirt and lay down a weed barrier or borders if you want them. next, use a shovel and hard metal rake to spread the gravel evenly across the driveway. using a mechanical compactor if you have one, or a truck if you don’t, to tamp the gravel down.
water containing vegetables or algae growth can reduce the bond strength of the cement with the aggregates. vegetables, mineral and linseed oil content above 2% in water can reduce the quality of concrete to about 25%. silt and other suspensions also can have bad effects on concrete.
raking your gravel driveway regularly. pros; rakes out surface weeds and moves the gravel around making it difficult for weed seeds to germinate so preventing weed from growing.cons; unfortunately raking also stirs up the dirt that has got into the gravel creating a seed bed for new airborne weeds. topping up the gravel by spreading a fresh load over the driveway every five or so years.
stake 1×2 furring strips along the edges of the driveway or patio, keeping them 1/2 in. above the existing surface. “picture frame” the section by nailing 1/2-in. plywood strips, flat to the concrete, along the control joints. mix one part type 1 portland cement and one part