Ceramic recycled concrete is an environmentally friendly thermal insulation material.In order to meet the requirement of material strength,the compressive performance of ceramic recycled concrete hollow blocks and masonry were studied.By replacing natural coarse aggregates with ceramic aggregates and natural sand with recycled fine aggregates,390 mm×190 mm×190 mm single row hole hollow blocks and 600 mm × 190 mm×1 000 mm masonry specimens built with hollow blocks were produced.The strength variation of masonry specimens with three ceramic aggregate replacement rates(0,50％,100％)and full recycled fine aggregate was analyzed.The experimental results show that the failure of hollow blocks is brittle,and with the increase of ceramic aggregate replacement rate,the density,compressive and flexural strength of the blocks decrease.The compressive strength of masonry specimens increases with the increase of ceramic aggregate replacement rate and the compressive strength of hollow blocks.Using SVM neural network,the compressive strength of recycled concrete masonry specimens under different percentages of ceramic aggregate replacement was predicted,and the predicted values showed a high degree of agreement with the test values.
关键词
陶粒/再生细骨料/混凝土/空心砌块/砌体
Key words
ceramic aggregate/recycled fine aggregate/concrete/hollow block/masonry
维普
万方数据