A basic concrete mix works for many small projects, such as setting posts, while a high-strength or crack-resistant mix works better for patching a driveway. Avoid substituting a mortar mix for a concrete mix. Plan to keep the concrete surface slightly moist for 3 to 5 days while it cures to prevent cracks. Christy's Red Hot Blue Glue 4 oz. PVC Christy's Red Hot Blue Glue 4 oz. PVC Pipe Cement is designed to work in most types of weather conditions to seal pressure and non-pressure potable and non-potable PVC pipes through 6 in. interference fit. It is ideally suited for instances needing quick or immediate pressurization.

Portland is hydraulic cement, meaning it hardens and cures upon contact with water, but the exact process is so complicated that we don’t fully understand it even today. The proper amount of water is critical in mixing concrete – too little won’t fully hydrate the mix, leading to an uneven cure and too much will weaken it. Most synthetic fibermesh products are engineered for use as concrete reinforcement at a ratio of 1.0 to 1.5 lbs per cubic yard (.60 to .90 kg per cubic meter). of concrete. Although more, 2 or 3 bags per yard could be added for some "extra" reinforcement, adding less than 1 bag per yard is not recommended.