沙漠砂纤维陶粒混凝土力学性能试验研究  

Experimental study on mechanical properties of desert sand fiber ceramsite concrete

作　　者：高峰 商冲冲 Gao Feng;Shang Chongchong(Yili Normal University,College of Physical Science and Technology,Xinjiang Condensed Matter Phase Transition and Microstructure Laboratory,Yining Xinjiang 835000,China)

机构地区：[1]伊犁师范大学物理科学与技术学院新疆凝聚态相变与微结构实验室,新疆伊宁835000

出　　处：《山西建筑》2025年第3期96-99,共4页Shanxi Architecture

基　　金：伊犁师范大学校级科研项目(项目编号:2021YSYB105)。

摘　　要：为研究沙漠砂纤维轻骨料混凝土(DPFLWC)的力学性能,通过不同掺量的聚丙烯纤维混凝土进行28 d抗压强度、劈拉强度的试验研究。探讨了劈拉强度、抗压强度在不同纤维掺量下的变化规律;构建了劈拉强度与抗压强度关系的计算模型。结果表明:其抗压强度、劈拉强度均随纤维掺量的增加呈先增后减的规律,当纤维掺量较高时,其强度增长率降低;能量耗散分析表明聚丙烯纤维起到了增韧作用,提高了耗能能力;结合现有文献数据验证了劈拉强度与抗压强度的换算关系的可靠性;其结果可为沙漠砂纤维陶粒混凝土在工程上的应用提供参考。In order to study the mechanical properties of desert sand fiber light aggregate concrete(DPFLWC),the 28 d compressive strength and spliting strength of polypropylene fiber reinforced concrete with different dosages were experi-mentally studied.The variation of splitting tensile strength and compressive strength under dfferent fiber content was dis-cussed.The conversion formula of the relationship between cleavage strength and compressive strength was established.The results show that with the increase of fiber content,the compressive strength and splitting strength increase first and then decrease,and when the fiber content is high,the strength growth rate decreases.The energy dissipation analysis showed that polypropylene fiber played a toughening role and improved the energy dissipation capacity.Combined with the existing literature data,the reliability of the proposed formulas of splitting tensile strength and compressive strength is veri-fied.The results can provide a reference for the application of desert sand fiber ceramsite concrete in engineering.

关 键 词：聚丙烯纤维 抗压强度 劈拉强度 拉压比 

分 类 号：TU522.32[建筑科学—建筑技术科学]