Experimental Research On Mix Design Of Recycled Coarse Aggregate Concrete With Waste Ceramics

With the continuous advancement of urbanization in China,the demand for natural resources such as sand and rocks is also increasing.The development and research of renewable resources have received more and more attention from scholars.This paper collects the waste ceramics in the surrounding areas of Mianyang,crushing,screening and removing impurities,and applies them to substitute natural stone to prepare recycled ceramics for recycling coarse aggregate concrete.This paper measured the basic properties of six different types of waste ceramic particles,including particle grading,needle-like content,bulk density,apparent density,water absorption,and crush value,etc.,and based on the design strength C30 as a benchmark In order to replace the natural stone with the mass of 45%,50%,55%,60%,65%,70%,75%,and 100% of the replacement ratio of the natural stone,the recycled coarse-grained concrete made from waste ceramics was tested and studied.The concrete is the control group.The basic properties of the waste ceramic particles and the effect of the substitution rate on the strength are analyzed,and the basic conditions that the recycled ceramics need to meet in order to meet the strength requirements are determined.Finally,the original conditions are used.0 The software performs a non-linear fit on the curve of the replacement rate and intensity,and the relationship between the substitution rate and intensity is expressed as: y=a₁?¹+a₂?²+a₃?³+Intercept?...