fast mix lightweight concrete composition, highway bed, and method for producing a fast mix lightweight concrete composition

摘要

QUICK MIX CONCRETE COMPOSITION, ROAD BED, AND METHOD FOR PRODUCING A QUICK MIX CONCRETE COMPOSITION. A fast-mix lightweight concrete composition containing (8-20)% by volume of cement, (1-50)% by volume of sand, (10-31)% by volume of pre-swollen particles, (9- 40)% by volume of coarse aggregate, and (10-22)% by volume of water, where the sum of components used does not exceed (100)% by volume. Pre-swollen particles have an average particle diameter of 0.2 mm to 8 mm, a mass density of 0.02 g / cm 3 to 0.64 g / cm 3, an aspect ratio of 1 to 3. A composition consistency value measured according to ASTM C 143 is from 5.08 cm to 20.32 cm. After the quick mix lightweight concrete composition has been laid for 28 days, it has a compressive strength of at least 1400 psi (9.65 MPa) as tested according to ASTM C39.