CAJ | 학술논문

研究了不同再生细骨料取代率和玻化微珠体积掺量对再生保温混凝土性能的影响。对28 d龄期各组试块的立方体抗压强度、导热系数和密度进行了测试，对试验结果进行了分析，综合28 d立方体抗压强度和导热系数两个指标对自保温再生混凝土的配合比进行了优化。结果表明：随玻化微珠体积掺量增加，28 d立方体抗压强度、导热系数和密度均降低；再生细骨料取代率和玻化微珠体积掺量同28 d立方体抗压强度、导热系数和密度的关系可由多项式拟合；再生细骨料取代率为50％、玻化微珠体积掺量为110％时的配合比为优化配合比。
연구료불동재생세골료취대솔화파화미주체적참량대재생보온혼응토성능적영향。대28 d령기각조시괴적립방체항압강도、도열계수화밀도진행료측시，대시험결과진행료분석，종합28 d립방체항압강도화도열계수량개지표대자보온재생혼응토적배합비진행료우화。결과표명：수파화미주체적참량증가，28 d립방체항압강도、도열계수화밀도균강저；재생세골료취대솔화파화미주체적참량동28 d립방체항압강도、도열계수화밀도적관계가유다항식의합；재생세골료취대솔위50％、파화미주체적참량위110％시적배합비위우화배합비。
With the total recycled coarse aggregate replacement, the influence of recycled fine aggregate replace-ment ratio and glazed hollow bead volume replacement on thermal insulation&recycled concrete were studied by exper-imental tests.The cubic compressive strength, thermal conductivity and density of 28 d aged concrete specimen were tested, the experimental results were analyzed, and the mix proportion design of thermal insulation&recycled concrete was optimized with 28 d cubic compressive strength and thermal conductivity consideration.The results showed that:the cubic compressive strength, thermal conductivity and density decreased with the increase of glazed hollow bead vol-ume replacement, their relationship was polynomial fitting; the mix proportion with recycled fine aggregate 50% re-placement and the glazed hollow bead 110%volume replacement was the optimized design.