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发布时间：2020-01-06 00:00:00
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火山渣粒径和DPS掺量对轻骨料混凝土性能的影响
Effect of volcanic slag particle size and DPS content on performance of lightweight aggregate concrete
2024年第3期
火山渣粒径；无机防水剂；轻骨料混凝土；工作性；力学性能
Particle size of volcanic slag; Inorganic waterproofing agent; Lightweight aggregate concrete; Workability; Mechanical property
2024年第3期
10.19761/j.1000-4637.2024.03.090.04
河北省高校2022年基本科研业务费项目（2022CXTD01）；河北省建设科技研究计划项目（2020-266）；河北建筑工程学院博士基金项目（B-202103）；张家口市科技局重点研发计划项目（2121010B）。
刘宏波1，2，张少云1，张博洋1，李 泳1，常 璞1，孙 婧1，2，*
1.河北建筑工程学院，河北 张家口 075000；2.河北土木工程诊断、重建与抗灾重点实验室， 河北 张家口 075000

刘宏波1，2，张少云1，张博洋1，李 泳1，常 璞1，孙 婧1，2，*

刘宏波,张少云,张博洋,等.火山渣粒径和DPS掺量对轻骨料混凝土性能的影响[J].混凝土与水泥制品,2024(3):90-92,98.

LIU H B,ZHANG S Y,ZHANG B Y,et al.Effect of volcanic slag particle size and DPS content on performance of lightweight aggregate concrete[J].China Concrete and Cement Products,2024(3):90-92,98.

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摘   要：以火山渣作为粗骨料制备了轻骨料混凝土，研究了火山渣粒径（4.75~9.50、4.75~19.00、4.75~26.00 mm）对轻骨料混凝土坍落度、吸水率和抗压强度的影响，优选出了最佳火山渣粒径。在此基础上，研究了渗透结晶型无机防水剂（DPS）的掺量（0、0.6%、0.8%、1.0%）对轻骨料混凝土性能的影响，并分析了其作用机理。结果表明：随着火山渣粒径的增大，轻骨料混凝土的坍落度降低，吸水率增大，抗压强度先增大后减小，最佳火山渣粒径为4.75~19.00 mm；随着DPS掺量的增加，轻骨料混凝土的坍落度和吸水率降低，抗压强度增大；掺入适量DPS可以有效提高混凝土基体的密实度，从而改善混凝土的性能。 Abstract: Lightweight aggregate concrete was prepared by using volcanic slag as coarse aggregates, and the influence of volcanic slag particle size (4.75~9.50、4.75~19.00、4.75~26.00 mm) on the slump, water absorption, and compressive strength of lightweight aggregate concrete was studied, and the optimal volcanic slag particle size was selected. On this basis, the influence of the content of penetrating crystalline inorganic waterproofing agent (DPS) (0, 0.6%, 0.8%, 1.0%) on the performance of lightweight aggregate concrete was studied, and its mechanism of action was analyzed. The results show that as the particle size of volcanic slag increases, the slump of lightweight aggregate concrete decreases, the water absorption rate increases, and the compressive strength first increases and then decreases, and the optimal particle size of volcanic slag is 4.75~19.00 mm. With the increase of DPS content, the slump and the water absorption rate of lightweight aggregate concrete decrease, and the compressive strength increases. Adding an appropriate content of DPS can effectively improve the compactness of the concrete matrix, thereby improving the performance of the concrete.
英文名 : Effect of volcanic slag particle size and DPS content on performance of lightweight aggregate concrete
刊期 : 2024年第3期
关键词 : 火山渣粒径；无机防水剂；轻骨料混凝土；工作性；力学性能
Key words : Particle size of volcanic slag; Inorganic waterproofing agent; Lightweight aggregate concrete; Workability; Mechanical property
刊期 : 2024年第3期
DOI : 10.19761/j.1000-4637.2024.03.090.04
文章编号 :
基金项目 : 河北省高校2022年基本科研业务费项目（2022CXTD01）；河北省建设科技研究计划项目（2020-266）；河北建筑工程学院博士基金项目（B-202103）；张家口市科技局重点研发计划项目（2121010B）。
作者 : 刘宏波1，2，张少云1，张博洋1，李 泳1，常 璞1，孙 婧1，2，*
单位 : 1.河北建筑工程学院，河北 张家口 075000；2.河北土木工程诊断、重建与抗灾重点实验室， 河北 张家口 075000

刘宏波1，2，张少云1，张博洋1，李 泳1，常 璞1，孙 婧1，2，*

刘宏波,张少云,张博洋,等.火山渣粒径和DPS掺量对轻骨料混凝土性能的影响[J].混凝土与水泥制品,2024(3):90-92,98.

LIU H B,ZHANG S Y,ZHANG B Y,et al.Effect of volcanic slag particle size and DPS content on performance of lightweight aggregate concrete[J].China Concrete and Cement Products,2024(3):90-92,98.

摘要
参数
结论
参考文献
引用本文

摘   要：以火山渣作为粗骨料制备了轻骨料混凝土，研究了火山渣粒径（4.75~9.50、4.75~19.00、4.75~26.00 mm）对轻骨料混凝土坍落度、吸水率和抗压强度的影响，优选出了最佳火山渣粒径。在此基础上，研究了渗透结晶型无机防水剂（DPS）的掺量（0、0.6%、0.8%、1.0%）对轻骨料混凝土性能的影响，并分析了其作用机理。结果表明：随着火山渣粒径的增大，轻骨料混凝土的坍落度降低，吸水率增大，抗压强度先增大后减小，最佳火山渣粒径为4.75~19.00 mm；随着DPS掺量的增加，轻骨料混凝土的坍落度和吸水率降低，抗压强度增大；掺入适量DPS可以有效提高混凝土基体的密实度，从而改善混凝土的性能。

Abstract: Lightweight aggregate concrete was prepared by using volcanic slag as coarse aggregates, and the influence of volcanic slag particle size (4.75~9.50、4.75~19.00、4.75~26.00 mm) on the slump, water absorption, and compressive strength of lightweight aggregate concrete was studied, and the optimal volcanic slag particle size was selected. On this basis, the influence of the content of penetrating crystalline inorganic waterproofing agent (DPS) (0, 0.6%, 0.8%, 1.0%) on the performance of lightweight aggregate concrete was studied, and its mechanism of action was analyzed. The results show that as the particle size of volcanic slag increases, the slump of lightweight aggregate concrete decreases, the water absorption rate increases, and the compressive strength first increases and then decreases, and the optimal particle size of volcanic slag is 4.75~19.00 mm. With the increase of DPS content, the slump and the water absorption rate of lightweight aggregate concrete decrease, and the compressive strength increases. Adding an appropriate content of DPS can effectively improve the compactness of the concrete matrix, thereby improving the performance of the concrete.

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（1）随着火山渣粒径的增大，轻骨料混凝土的坍落度降低，吸水率增大，7 d和28 d抗压强度均先增大后减小。综合考虑，推荐火山渣的最佳粒径为4.75~19.00 mm。

（2）随着DPS掺量的增加，轻骨料混凝土的坍落度和吸水率均降低，7 d和28 d抗压强度均增大。
（3）SEM分析结果表明，DPS在混凝土基体中生成了大量结晶体和凝胶物质，填充了基体内部的裂缝和孔隙，提高了基体密实度，从而改善了轻骨料混凝土的性能。

[1] CEHN P,WANG Z X,CAO S J,et al.Study on axial compressive stress-strain relationship of alkali-activated slag lightweight aggregate concrete[J].Construction and Building Materials,2023,364:129991.
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[4] 王宏,王丹丹,朱平,等.基于三元骨料体系的LC60轻骨料混凝土性能试验研究[J].混凝土与水泥制品,2022(3):96-100.
[5] 黎蔚诗,王旭,夏京亮,等.天然火山渣轻骨料混凝土骨料体系对混凝土性能的影响研究[J].建筑科学,2018,34(3):76-81.
[6] WANG X F,CHEN S C,REN J,et al.Effect of super absorbent polymer and mineral additives on mechanical, shrinkage and healing properties of self-healing lightweight aggregate concrete under different curing regimes[J].Construction and Building Materials,2022,357:708-725. 
[7] XIAO L G,LI J H,LIU Q S.Effect of fly ash on strength of cinder lightweight aggregate concrete[J].AEIC学术交流资讯中心.2018 4th International Conference on Applied Materials and Manufacturing Technology(ICAMMT 2018).南昌:AEIC学术交流资讯中心,2018:1385-1389.
[8] AYG?魻RMEZ Y.Performance of different binders doped Portland cement-based mortars using volcanic slag, petroleum coke and EPS foam aggregates[J]. Construction and Building Materials,2022,336:127538.
[9] ZHAN Y J,GONG J,HUANG Y L,et al.Numerical study on concrete pumping behavior via local flow simulation with discrete element method[J].Materials,2019,12(9):1415.

刘宏波,张少云,张博洋,等.火山渣粒径和DPS掺量对轻骨料混凝土性能的影响[J].混凝土与水泥制品,2024(3):90-92,98.

LIU H B,ZHANG S Y,ZHANG B Y,et al.Effect of volcanic slag particle size and DPS content on performance of lightweight aggregate concrete[J].China Concrete and Cement Products,2024(3):90-92,98.

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