| Title |
An Experimental Study on the Properties of the High Strength Concrete with Crushed Sand |
| Abstract |
The purpose of this study is to present the reference data about the property analysis of high strength crushed sand concrete with W/C 30-45%, slump 18-21cm and air contents 4-6%.The test results of this study indicate that it is possible to obtain the data of high strength crushed sand concrete with unit water content less than 185kg/m3 by high range water reducing agent. And the slump, slump flow and air content are remarkably decreased, but unit weight is increased as time passes. It is thought that introduction of superplasticized concrete and improvement of quality of high range water reducing agent and air entraining agent are required to obtain the intended goal. Compressive, tensile and flexural strength of crushed sand concrete are higher than those of river sand concrete, but drying shrinkage of crushed sand concrete is smaller than that of river sand concrete because of the effects unit water content and the properties of grading of fine aggregate. |