Effects of Clay on Flow Properties of Polycarboxylate Superplasticizer and Its Control Measure

被引：4
|
作者：
Liu, Xiao [1 ]
Wang, Ziming [1 ]
Wu, Hao [2 ]
Li, Huiqun [1 ]
机构：
[1] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
[2] Chem Ind Press, Beijing 100011, Peoples R China
来源：
MATERIAL DESIGN, PROCESSING AND APPLICATIONS, PARTS 1-4 | 2013年 / 690-693卷
基金：
中国国家自然科学基金;
关键词：
polycarboxylate superplagticizer; clay; cement; fluidity; mortar;
D O I：
10.4028/www.scientific.net/AMR.690-693.682
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Polycarboxylate superplasticizer (PCE) was usually sensitive to clay in mortar or concrete. The flow properties of cement pastes and mortars for PCEs with either kaolin or bentonite were studied systematically. The results showed that bentonite had a stronger influence on PCE's performance than kaolin, even no fluidity when bentonite dosage was more than 2%. The adsorption amount of bentonite on PCE was about 5-10 times more than that of kaolin, and PCE's adsorption on clay was proportional to its sensitivity to clay. The influencing mechanism of clay on PCE was analyzed from the structures of kaolin and bentonite and their adsorption characteristics between interlayer. The result of exploring control measure showed that adding the synthesized pre-adsorbent can effectively inhibit the effect of clay on PCE and ensure its workability.
引用
收藏
页码：682 / +
页数：2
相关论文
共 50 条
  • [21] Synthesis of polycarboxylate superplasticizer modified by β-cyclodextrin for possessing clay tolerance
    Li, Yue
    Li, Hongwen
    Jin, Caiyun
    Zhao, Bingyin
    Wu, Yusheng
    JOURNAL OF APPLIED POLYMER SCIENCE, 2022, 139 (15)
  • [22] Effects of a polycarboxylate superplasticizer and temperature on the rheological properties of grout blended with seawater
    Shao, Wei
    Zhu, Zhijing
    Liu, Rentai
    Wang, Zhiheng
    Wei, Bing
    CONSTRUCTION AND BUILDING MATERIALS, 2023, 375
  • [23] Effects of polycarboxylate-based superplasticizer on rheological and mechanical properties of concrete
    Al-Martini, Samer
    Najim, Omar F.
    Al Hawat, Waddah
    CONSTRUCTION MATERIALS AND STRUCTURES, 2014, : 327 - 332
  • [24] Synthesis and Properties of a Vinyl Ether-Based Polycarboxylate Superplasticizer for Concrete Possessing Clay Tolerance
    Lei, Lei
    Plank, Johann
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2014, 53 (03) : 1048 - 1055
  • [25] Synthesis and properties of a novel amphoteric polycarboxylate superplasticizer
    Zhang, Jingfei
    Liao, Bing
    Meng, Yeyun
    Li, Simin
    Lin, Xiuju
    Huang, Jianheng
    Pang, Hao
    JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2020, 41 (04) : 628 - 637
  • [26] Effect of sulfate on dispersing properties of polycarboxylate superplasticizer
    Liu, Juan-Hong
    Song, Shao-Min
    Gao, Xia
    Yang, Wen-Lie
    Jianzhu Cailiao Xuebao/Journal of Building Materials, 2013, 16 (03): : 410 - 415
  • [27] Improvement of Clay Sensitivity of Polycarboxylate Superplasticizer by Gemini Quaternary Ammonium Salt
    Zhang G.
    Wang S.
    Zhang C.
    Cui H.
    Jianzhu Cailiao Xuebao/Journal of Building Materials, 2019, 22 (01): : 81 - 86
  • [28] Preparation and clay tolerance research of a polycarboxylate superplasticizer modified by phosphonate group
    Zhang, Ming
    Guo, Chunfang
    Zhang, Qian
    Pei, Meishan
    JOURNAL OF POLYMER RESEARCH, 2024, 31 (08)
  • [29] Effects of polycarboxylate superplasticizer on rheological properties and early hydration of natural hydraulic lime
    Zhu, Jianfeng
    Hui, Jing
    Luo, Hongjie
    Zhang, Biao
    Wei, Xiaohong
    Wang, Fen
    Li, Yunfeng
    CEMENT & CONCRETE COMPOSITES, 2021, 122
  • [30] Effects of Polycarboxylate Superplasticizer with β-Cyclodextrin on Properties of High Belite Calcium Sulphoaluminate Cement
    Tang R.
    Wang Z.
    He H.
    Zhang L.
    Cai Y.
    Wang J.
    Cailiao Daobao/Materials Review, 2018, 32 (11): : 4000 - 4005
12345