Experimental study on the mixing ratio of porous bricks of industrial waste residue recycled concrete

industrial waste;  concrete perforated bricks;  recycled aggregates;  Fit ratio;  Masonry structures

The test was to study the mix ratio of recycled concrete porous bricks by using industrial waste residue as coarse and fine aggregate. The KP1 perforated bricks of reclaimed concrete of A, B and C were made by vibration extrusion molding by orthogonal test, and the compressive strength, shrinkage performance and freeze-thaw cycle tests were carried out according to the method specified in the test method > of < wall bricks (GB/T 2542-2003). The results of the test were evaluated according to the > of < concrete porous bricks (JC 943-2004), and the results showed that the strength grade of class A could reach MU15, and the strength grade of class B and C could reach MU10. The shrinkage performance of perforated bricks is small, the freeze-thaw cycle test results meet the requirements, and the price is low, which can be used as an alternative to clay bricks for masonry structure houses.