| abstract |
The present invention relates to a very highly practical and controllable concrete mix design, admixture composition and concrete casting method. This blend design facilitates the finishing of concrete surfaces, whether cast into a horizontal form (eg, slab, floor) or a vertical form (eg, block, wall, column, etc.). Recall self-compacting concrete (SCC), characteristic of ready-mixed concrete (RMC), without loss of control and without high risk of separation, even when a small amount of water is added on site Certain aggregate / cement ratios and types that provide advantages over both RMC and SCC in terms of ease and speed of casting and finishability in the construction site casting zone About. The admixture composition of the present invention that enables this unique design comprises two different polycarboxylate comb polymers in combination with two specific viscosity modifiers, wherein the combination is controlled and efficient. Provides highly practical concrete cast in a fashion. [Selection diagram] FIG. |