Study on Properties of Self-Compacting Concrete with Recycled Powder
To utilize the recycled powder as concrete additives, self-compaceing concerte with recycled powder, granulated blast-furnace slag and granulated limestone were tested for slump-flow, compressive strength, modulus of elasticity and drying shrinkage. Reduction in superplasticizing effect of high-range water reducer was found for concrete with recycled powder. Compressive strength of concrete with recycled powder were the same as those with granulated limestone, and lower than those with granulated blast-furnace slag. Concrete with recycled powder showed lower elastic modulus and higher drying shrinkage than those with granulated blast-furnace slag and granulated limestone. The addition of granulated blast-furnace slag together with recycled powder to self-compacting concrete improved superplasticizing effect of high-range water reducer and properties of concrete.
Guangfan Li, Yong Huang and Chaohe Chen
H. Z. Quan "Study on Properties of Self-Compacting Concrete with Recycled Powder", Advanced Materials Research, Vols. 250-253, pp. 866-869, 2011