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Wooden platforms, not highly above the ground, which allow us to keep cement in an adequate way and transport it by a forklift truck.
Thin layer of concrete on which foundation is built.
Test performed by pressing an sphere with a constant load against surface of hardened concrete. The diameter of the result is used as measure of the penetration magnitude and indicates concrete strength.
Action to pour freshly-placed concrete in arch centering or mold.
Adherence between two materials, which depends on the irregular topography of surfaces or their rugosity.
Rough cover for walls. It can be the first layer of a smoothen surface, applied with more strength to assure that is adhered to the wall.
Property of cement past, concrete or mortar, recently mixed. This property determines its easiness to be molded.
That must be vertical, which is usually verified by a plumb bob.
Metallic piece attached to a string, used to verify uprightness of walls.
Hydraulic cement produced with Portland clinker and natural gypsum. Traded in five different types.
Natural or artificial amorphous, siliceous material, capable to react with lime produced by cement during hydration to improve concrete properties. The most popular pozzolan is the pomice stone.
Type of Portland cement, resulting from adding and intergrinding an active material (Pozzolan). It is used to increase delayed mechanical strength, and strength to chemical attacks.
Vertical support.
Concrete transported through a hose or tube by a pump.
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