高吸水性树脂对低水胶比混凝土性能的影响_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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高吸水性树脂对低水胶比混凝土性能的影响

Influence of Super Absorbing Polymer (SAP) on Performance of Concrete with Low Water-binder Ratio

２０13年第7期

混凝土；高吸水性树脂；强度；保水性；电阻率；收缩

Concrete; Super absorbing polymer; Strength; Water retention; Electrical resistivity; Shrinkage

２０13年第7期

1000-4637（2013）07-07-04

王立霞

河南建筑职业技术学院，河南省建筑工程学校，郑州 450064

王立霞

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摘要：利用高吸水性树脂（SAP）引入数量不等的内养护水，研究了低水胶比混凝土强度、重量损失、电阻率和收缩的变化规律。结果表明，SAP的加入一定程度上降低了混凝土的抗压强度和劈裂抗拉强度，提高了混凝土的保水性，混凝土表面和内部的电阻率也有所下降，混凝土的自收缩大大降低，且混凝土的早期干缩也有所下降。 Abstract: By adding super absorbing polymer(SAP) into the concrete with low water-binder ratio as an internal curing agent, and by adding additional curing water to the concrete, the autogenous shrinkage of the concrete can be significantly reduced. The effects of the addition of SAP on the properties of the concrete with water-binder ratio 0.3 are investigated. The results show that the addition of SAP leads to the decrease of the compressive and tensile strength and the electrical resistivity. The water retention for the concrete incorporation SAP is higher compared to the concrete without SAP. The addition of SAP into the concrete with low water-binder ratio can remarkably reduce the autogenous shrinkage, and it can also decrease the early dry shrinkage of concrete.

英文名 : Influence of Super Absorbing Polymer (SAP) on Performance of Concrete with Low Water-binder Ratio

刊期 : ２０13年第7期

关键词 : 混凝土；高吸水性树脂；强度；保水性；电阻率；收缩

Key words : Concrete; Super absorbing polymer; Strength; Water retention; Electrical resistivity; Shrinkage

刊期 : ２０13年第7期

DOI :

文章编号 : 1000-4637（2013）07-07-04

基金项目 :

作者 : 王立霞

单位 : 河南建筑职业技术学院，河南省建筑工程学校，郑州 450064

王立霞

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

摘要

参数

结论

参考文献

引用本文

摘要：利用高吸水性树脂（SAP）引入数量不等的内养护水，研究了低水胶比混凝土强度、重量损失、电阻率和收缩的变化规律。结果表明，SAP的加入一定程度上降低了混凝土的抗压强度和劈裂抗拉强度，提高了混凝土的保水性，混凝土表面和内部的电阻率也有所下降，混凝土的自收缩大大降低，且混凝土的早期干缩也有所下降。

Abstract: By adding super absorbing polymer(SAP) into the concrete with low water-binder ratio as an internal curing agent, and by adding additional curing water to the concrete, the autogenous shrinkage of the concrete can be significantly reduced. The effects of the addition of SAP on the properties of the concrete with water-binder ratio 0.3 are investigated. The results show that the addition of SAP leads to the decrease of the compressive and tensile strength and the electrical resistivity. The water retention for the concrete incorporation SAP is higher compared to the concrete without SAP. The addition of SAP into the concrete with low water-binder ratio can remarkably reduce the autogenous shrinkage, and it can also decrease the early dry shrinkage of concrete.

关键词:

混凝土；高吸水性树脂；强度；保水性；电阻率；收缩

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[7] Craeye B, Geirnaert M, Schutter G D. Super aborbing polymers as an internal curing agent for mitigation of early-age cracking of high-performance concrete bridge decks[J]. Construction and Building Materials, 2011(25): 1-13.

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[10] Li Meili, Qian Jueshi, Xu Shanshan, et al. Assessment of curing efficiency and moist curing on performance of fly ash concrete[J]. Journal of Wuhan University of Technology-Mater. Sci. Ed. 2011, 26(2): 361-366.

[11] 李美利, 钱觉时, 王立霞, 等. 混凝土养护效果电阻率评价方法探索[J]. 建筑材料学报, 2011, 14(4): 473-477.

[12] Reza F, Batson G B, Yamamuro J A, et al. Volume Electrical Resistivity of Carbon Fiber Cement Composites[J]. ACI Materials Journal, 2001, 98 (1): 25-35.

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复合盐溶液中钢筋锈蚀对混凝土的损伤研究

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高吸水性树脂对低水胶比混凝土性能的影响

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