- 업종: Construction
- Number of terms: 2218
- Number of blossaries: 0
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An adhesive applied to both surfaces to be bonded and is allowed to dry to the touch. It bonds to itself instantaneously on contact. Since this type of adhesive does not remain tacky, it must not be allowed to dry.
Industry:Construction
Joints in concrete which occur whenever concrete work is concluded for the day. They separate areas of concrete placed at different times. In slabs on grade, construction joints usually align with and function as control or isolation joints.
Industry:Construction
A floor designed to carry off built-up static electricity and reduce the risk of explosion in potentially explosive environments.
Industry:Construction
A mixture of Portland cement, water, fine aggregate and coarse aggregate. The concrete is bound together by the Portland cement and water paste which surrounds the aggregate and fills all the spaces between particles.
Industry:Construction
Sealers are normally a finish coating used to protect concrete floors from traffic and surface cleaning and should not be used when the slab is intended as a substrate for resilient flooring. Sealers are designed to prevent water and dirt from getting into the concrete from the surface and render the concrete less porous. Sealers may interfere with the bond adhesives, and a bond test should always be run.
Industry:Construction
Compounds or other materials designed to strengthen the surface of new concrete and improve the quality of old concrete. These do not normally cause any bonding problems with resilient flooring installations, but a bond test should be run.
Industry:Construction
The process of keeping concrete moist for an extended period of time. Curing is necessary to insure proper hydration, and for strength and quality.
Industry:Construction
The ability of a material, such as concrete, to withstand loads. Compressive strength is measured in pounds per square inch (PSI). If the compressive strength is 3500 psi, it means the subject material will withstand a load up to 3500 pounds per square inch without breaking down.
Industry:Construction
Compounds which are applied to new concrete to seal water in for curing. This makes it possible to get onto the concrete quickly. Traditionally, slabs were kept wet for curing by traditional means such as wet straw, burlap, plastic film, etc. This kept the concrete wet for the 28 day "wet cure" but did not allow for use of the slab during the curing period. Whenever curing agents have been used, a bond test should be run to determine the compatibility of the adhesive to the curing compounds. Curing compounds must be removed in areas where calcium chloride tests are being run. When moisture testing fails, curing agents need to be removed to allow the concrete to dry.
Industry:Construction
