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硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (6): 2034-2040.DOI: 10.16552/j.cnki.issn1001-1625.2025.1262

• 资源综合利用 • 上一篇    下一篇

复合矿物掺合料对热湿养护水泥砂浆强度和毛细吸水率的影响

胡成1,2,3,4(), 王启杰1,2, 向玮衡1,2,3,4(), 梁钰湲2,3, 曹康2, 蔡广润2,3   

  1. 1.桂林理工大学广西绿色建材与建筑工业化重点实验室,桂林 541004
    2.桂林理工大学土木工程学院,桂林 541004
    3.桂林理工大学广西工业废渣建材资源利用工程技术研究中心,桂林 541004
    4.桂林理工大学有色金属矿产勘查与资源高效利用省部共建协同创新中心,桂林 541004
  • 收稿日期:2025-12-15 修订日期:2026-02-09 出版日期:2026-06-15 发布日期:2026-07-14
  • 通信作者: 向玮衡,博士,副研究员。E-mail:XWH891116@163.com
  • 作者简介:胡成(1988—),男,博士,副研究员。主要从事固废资源化利用、低碳胶凝材料方面的研究。E-mail:hucheng42@glut.edu.cn
  • 基金资助:
    广西青年科学基金(2023GXNSFBA026130);广西科技计划项目(桂科AD25069006);国家自然科学基金(52368029);国家自然科学基金(52468032)

Influences of Composite Mineral Admixtures on Strength and Capillary Water Absorption of Thermal Wet Curing Cement Mortar

HU Cheng1,2,3,4(), WANG Qijie1,2, XIANG Weiheng1,2,3,4(), LIANG Yuyuan2,3, CAO Kang2, CAI Guangrun2,3   

  1. 1.Guangxi Key Laboratory of Green Building Materials and Construction Industrialization,Guilin University of Technology,Guilin 541004,China
    2.College of Civil Engineering,Guilin University of Technology,Guilin 541004,China
    3.Guangxi Engineering and Technology Center for Utilization of Industrial Waste Residue in Building Materials,Guilin University of Technology,Guilin 541004,China
    4.Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources,Guilin University of Technology,Guilin 541004,China
  • Received:2025-12-15 Revised:2026-02-09 Published:2026-06-15 Online:2026-07-14

摘要:

为驱动建材行业绿色低碳转型,本研究以钢渣、矿渣及粉煤灰作为矿物掺合料替代40%(质量分数,下同)的水泥,系统研究了在热湿养护下不同配合比设计对复合胶凝材料力学性能、毛细吸水特性及微观性能的影响。试验结果表明:在力学性能方面,当粉煤灰含量为10%时,砂浆试件的抗折与抗压强度高于0%与20%粉煤灰掺量的组别;同时,随着钢渣掺量的增加、矿渣掺量的下降,砂浆试件的抗折与抗压强度也逐渐下降。另外,当钢渣掺量为10%、矿渣掺量为20%时,抗折与抗压强度仅次于钢渣掺量为0%、矿渣掺量为30%的组别,两者的抗折强度增长量相近,而抗压强度增长量前者高于后者。在毛细吸水特性方面,随着钢渣掺量的增加,毛细吸水系数在逐渐上升,这反映了孔隙结构的劣化。在微观性能方面,钢渣掺量的增加会使复合胶凝材料的活性成分减少,但适量掺加能够促进矿渣的水化反应。

关键词: 钢渣, 矿渣, 粉煤灰, 热湿养护, 毛细吸水率

Abstract:

In order to drive the green and low-carbon transformation of the building materials industry, the steel slag (SS), ground granulated blast furnace slag (GGBS) and fly ash (FA) were used to replace 40% (in mass, the same below) of cement, and systematically studied the effects of different mix designs on the mechanical properties,capillary water absorption characteristics and microscopic properties of composite cementitious materials under thermal wet curing. The test results show that in terms of mechanical properties, when the content of FA is 10%, the flexural and compressive strength of mortar specimen are higher than those of 0% and 20% FA. At the same time, with the increase of SS content and the decrease of GGBS content, the flexural and compressive strength of mortar specimen also decrease. In addition, when the SS content is 10% and GGBS content is 20%, the flexural strength and compressive strength are second only to the group with SS content of 0% and GGBS content of 30%, The increase in flexural strength is similar for both, while the increase in compressive strength is higher for the former than for the latter. In terms of capillary water absorption characteristics, with the increase of SS content, the capillary water absorption coefficient also increases gradually, reflecting the deterioration of pore structure. In terms of microscopic properties, the increase of SS content will reduce the active components of composite cementitious materials, but the appropriate amount of SS can promote the hydration reaction of GGBS.

Key words: steel slag, ground granulated blast furnace slag, fly ash, thermal wet curing, capillary water absorption

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