The Experimental Research Onbearingperformanceofregeneration Of Construction Waste With Fine Aggregate And Sand Mix Masonry

While the human society and people's environmental awareness are developing rapidly, the using of resources and the protection of environment are more and more cared about, for achieving the goal of developing with nature harmoniously. Proper and sufficient reusing of construction waste can not only reduce people's great waste of natural resources, but also benefit the economy and society. The reusing of construction waste has become one of the hot issues for engineering field and scientific research field. Many experts have gained great development on the research of the reusing of construction waste, especially the recycled coarse aggregate. However, the reusing of recycled fined aggregate doesn't catch enough attention, causing the low reusing ratio of construction waste. During a period of time after we set up our nation, most of the constructions were built with bricks. When this kind of construction is pulled down, a lot of waste bricks will be produced. Because of low strength, a lot of fine aggregates will also be produced after waste bricks crushed. According to this situation, it is important to study the recycled fine aggregate of construction waste in our country.Based on the experimental study for compressive performance and shrinkage deformation of different strength grades'mixed mortars which are made of different kinds of fine aggregate that is selected after the waste bricks crushed instead of natural mortars, the main factors affecting the strength, like the different strength grades of the missed mortars, the main factors affecting the shrinkage deformation, are discussed and analyzed. The formulas match well with the experimental data, so the results may be as a reference for the application of mixed mortar using recycled fine aggregate in engineering.