[1]李国新,郭 艳,史 琛,等.高效减水剂与缓凝剂复掺对三元胶凝体系流动性和强度的影响[J].西安建筑科技大学学报:自然科学版,2014,46(06):898-902.[doi:10.15986/j.1006-7930.2014.06.024]
　LI Guoxin,GUO Yan,SHEN Chen,et al.Effects of -naphthalenelfonicacid-based superplasticizer and retarder on the fluidity and strength of the ternary cementitious system[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2014,46(06):898-902.[doi:10.15986/j.1006-7930.2014.06.024]
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高效减水剂与缓凝剂复掺对三元胶凝体系流动性和强度的影响()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
46
期数:
2014年06期
页码:
898-902
栏目:
出版日期:
2014-12-31

文章信息/Info

Title:
Effects of -naphthalenelfonicacid-based superplasticizer and retarder on the fluidity and strength of the ternary cementitious system
文章编号:
1006-7930(2014)06-0898-05
作者:
李国新; 郭 艳; 史 琛; 田 婷; 张 歌
(西安建筑科技大学材料与矿资学院,陕西 西安 710055)
Author(s):
LI Guoxin;  GUO Yan;  SHEN Chen;  TIAN Ting;  ZHANG Ge
(School of Materials and Mineral Resources, Xi’an Univ. of Arch.& Tech., Xi’an 710055, China)
关键词:
三元胶凝体系; 高效减水剂; 缓凝剂; 流动度; 强度
Keywords:
ternary cementitious;  superplasticizer;  retarder;  fluidity;  strength
分类号:
TU398.9
DOI:
10.15986/j.1006-7930.2014.06.024
文献标志码:
A
摘要:
针对掺萘系高效减水剂(BNS)的硅酸盐水泥-铝酸盐水泥-石膏三元胶凝体系浆体流动性小、流动性经时损失大、凝 结时间短等这些问题,采用了BNS与缓凝剂柠檬酸(CA)、葡萄糖酸钠(SG)复掺的方式来予以解决,同时研究了外加剂复掺对三元胶凝体系1 d、7 d、28 d强度的影响.研究结果表明:随着CA和SG掺量的增加,三元胶凝体系浆体的流动度增大、凝结时间明显延长,且SG 的作用效果较CA 更加显著;CA 和SG 均使胶砂试件早期抗压强度小幅度降低,后期强度略有增加.
Abstract:
The naphthalene superplasticizer (BNS) can reduce the fluidity, increase the fluidity loss and shorten the setting time of Portland cement- aluminate cement-gypsum ternary cementitious. To solve these problems, this paper adopts the method of mixing the BNS with the retarder of citric acid (CA) or sodium gluconate (SG). The influence of composite admixture on the 1d, 7d and 28d strength of ternary cementitious have also been researched. The results show that with the increase of CA and SG dosage, the ternary cementitious fluidity increases, the setting time is prolonged and the effects of SG are more significant than CA. The earlier compressive strength of mortar specimen with both CA and SG all decreased slightly and the later strength increased slightly.

参考文献/References:

[1] DAVID Torréns-Martín, Lucía Fernández-Carrasco, María TeresaBlanco-Varela.Conduction calorimetric studies of ternary binders basedon Portland cement, calcium aluminate cement and calciumsulphate[J]. Journal Thermal Analyze Calorimeter,2013,2:799-807.

[2] XU Linglin, WANG Peiming, ZHANG Guofang. Formation of ettringite in Portland cement/calcium aluminate cement/calcium sulfate ternary system hydrates at lower temperatures[J]. Construction and Building Materials, 2012, 31: 347–352.

[3] 王培铭,孙磊,徐玲琳,等. 硅酸盐水泥与铝酸盐水泥混合体系的研究与应用[J]. 材料导报, 2013, 27(1): 139-143.

WANG Peiming, SUN Lei, XU Linglin, et al. Research and application of blends of Portland cement and calcium aluminate cement[J].Journal of Materials, 2013, 27(1): 139-143.

[4] 何廷树, 申富强, 王福川, 等. 复合使用高效减水剂与缓凝剂对水泥水化历程的影响[J].硅酸盐学报,2007,35(6): 796-800.

HE Tingshu, SHEN Fuqiang, WANG Fuchuan, et al. Influences of combination of superplasticizers and retarders on process of cement hydration[J], Journal of the Chinese Ceramic Society, 2007, 35(6): 796-800.

[5] LI Guoxin, HE Tingshu, HU Dawei, et al. Effects of two retarders on the fluidity of pastes plasticized with aminosulfonicacid-based superplasticizers[J]. Construction and Building Materials,2012, 26: 72-78.

[6] LI Guoxin, HE Tingshu, HU Dawei, et al. Effects of retarders on thefluidity of pastes containing β- naphthalenesulfonic acidbasedsuperplasticizer[J]. Advances in Cement Research, 2012, 24(4): 203-210.

[7] 何廷树. 混凝土外加剂[M].西安: 陕西科技出版社, 2003: 92-94.

HE Tingshu. Admixture of Concrete[M]. Xi’an:Shaanxi science and technology press, 2003: 92-94.

[8] MARTIRENA F, RODRIGUEZ Y, Callico A. Microorganism-based bioplasticizer for cementitiousmaterials[J]. Construction and Building Materials,2014, 60: 91-97.

相似文献/References:

[1]李国新,郭 艳,史 琛,等.缓凝剂对水泥单矿物吸附萘系高效减水剂的影响[J].西安建筑科技大学学报:自然科学版,2014,46(03):428.[doi:10.15986/j.1006-7930.2014.03.022]
　LI Guoxin,GUO Yan,SHI Chen,et al.Influence of retarder on the adsorptive capacity of -Naphthalenelfonic acid-based superplasticizer on cement mineral particles[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2014,46(06):428.[doi:10.15986/j.1006-7930.2014.03.022]

备注/Memo

备注/Memo:
收稿日期:2014-06-27   修改稿日期:2014-12-03
基金项目:陕西省教育厅专项科研计划项目(14JK1403);陕西省自然科学基础研究计划项目(2014JQ7251);西安建筑科技大学人才科技基金(DB09059);西安建筑科技大学科技基金项目(QN1421)
作者简介:李国新(1975-),男,教授,主要研究方向为高强高性能混凝土和化学建材.E-mail: liguoxin@xauat.edu.cn.
更新日期/Last Update: 2015-09-01