CAJ | 학술논문

为深入了解再生砖粗骨料混凝土的基本力学性能，测试了5种再生砖粗骨料替代率的混凝土棱柱体抗压强度、应力-应变关系和静力受压弹性模量等基本力学指标。结果表明：再生砖粗骨料混凝土棱柱体受压破坏过程与破坏形态与普通混凝土类似；随着再生砖粗骨料替代率的增加，棱柱体抗压强度先增大后减小、静力受压弹性模量逐渐降低、单轴受压应力-应变曲线的峰值应变逐渐增大；提出了再生砖粗骨料混凝土棱柱体抗压强度与立方体抗压强度的换算关系以及单轴受压应力-应变曲线的拟合公式，为再生砖粗骨料混凝土的进一步研究提供了重要依据。
위심입료해재생전조골료혼응토적기본역학성능，측시료5충재생전조골료체대솔적혼응토릉주체항압강도、응력-응변관계화정력수압탄성모량등기본역학지표。결과표명：재생전조골료혼응토릉주체수압파배과정여파배형태여보통혼응토유사；수착재생전조골료체대솔적증가，릉주체항압강도선증대후감소、정력수압탄성모량축점강저、단축수압응력-응변곡선적봉치응변축점증대；제출료재생전조골료혼응토릉주체항압강도여립방체항압강도적환산관계이급단축수압응력-응변곡선적의합공식，위재생전조골료혼응토적진일보연구제공료중요의거。
In order to deeply understand the basic mechanical properties of recycled-brick coarse-aggregate concrete ,the compressive strength of prism ,stress-strain curves ,elastic modulus in static compression and other basic mechanical in-dexes were tested with five sets of this concrete .The results showed that the compressive failure process and mode of the prism of this concrete was similar to that of ordinary concrete .In addition ,with the increasing of the replacement ratio of this recycled-brick coarse-aggregate ,the compressive strength of the prism firstly increased and then decreased ,the elas-tic modulus in static compression decreased gradually ,and the peak strain of uniaxial compressive stress-strain curve in-creased gradually .Finally ,the conversion relation between the prism’s compressive strength and cube’s compressive strength of this concrete as well as the fitting formula of uniaxial compressive stress-strain curve are put forward ,which could provide an important basis for further study on this recycled-brick coarse-aggregate concrete .