Effect of Sintering Temperature on Properties of Regenerated Sintered Sheet Brick

In order to study the effect of sintering temperature on the performance of recycled shale bricks, in this paper, a total of 8 groups of mix proportions were designed by changing the proportion of shale, waste shale brick powder, and waste concrete powder to prepare recycled sintered shale bricks. The sintering temperature was increased at a rate of 1 ℃/min to 900 ℃–1000 ℃, and performance tests were conducted with the requirements of the “Test Methods for Wall Building Bricks” (GB/T 2542–2012). Results of test indicate that when the sintering temperature of the brick is 1050 ℃, the minimum amount of waste mixture can be used to produce regenerated sintered shale bricks with excellent strength and density. By reducing the sintering temperature and increasing the content of waste mixture, the thermal conductivity of recycled sintered bricks can be improved. In practical applications, waste mixtures can be added and the sintering temperature can be adjusted according to actual engineering requirements to further encourage the recycling and utilization of construction waste.