蒸压加气混凝土砌块薄灰缝砌筑砂浆保水性研究

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发布时间：2020-01-06 00:00:00

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蒸压加气混凝土砌块薄灰缝砌筑砂浆保水性研究

Study on Water Retention of Mortar in Thin Mortar Joints of Autocluded Aerated Concrete Blocks

2020年第7期

低品位硅藻土；纤维素醚；保水率；薄灰缝砌筑砂浆

Low grade diatomite; Cellulose ether; Water retention; Thin mortar joint masonry mortar

2020年第7期

10.19761/j.1000-4637.2020.07.026.04

吉林省科技发展计划项目（20180312018EX）。

肖力光，邢纹浩

吉林建筑大学材料科学与工程学院，长春 130118

肖力光，邢纹浩

肖力光,邢纹浩.蒸压加气混凝土砌块薄灰缝砌筑砂浆保水性研究[J].混凝土与水泥制品,2020(7):26-29.

XIAO Li-guang,XING Wen-hao.Study on Water Retention of Mortar in Thin Mortar Joints of Autocluded Aerated Concrete Blocks[J].China Concrete and Cement Products,2020(7):26-29.

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摘要：主要研究了低品位二、三级硅藻土与纤维素醚协同作用对薄灰缝砌筑砂浆保水性能的影响。试验结果表明，经活化处理的硅藻土能显著提高砂浆的保水性以及力学性能，经10min机械活化、2h600℃热活化处理的硅藻土薄灰缝砌筑砂浆保水率最高可达95.7%，较空白组提高了22%；HPMC能提高砂浆的保水性，但明显降低砂浆的力学性能，掺量为0.27%时，砂浆的保水率达到最优99.4%；当硅藻土与纤维素醚混掺时，保水率≥99%，能显著降低纤维素醚用量，有较好的经济与环保价值。Abstract:Thewaterretentionperformanceoflow-gradediatomiteandcelluloseetherinthinmortarmortarwasstudied.Thetestresultsshowthattheactivatedtreatmentofdiatomitecansignificantlyimprovethewaterretentionandmechanicalpropertiesofthemortar.Thewaterretentionrateofthethinmortarmortartreatedbymechanicalactivationfor10minandthermalactivationat600℃for2hisupto95.7%,whichis22%higherthanthatoftheblankgroup.HPMCcanimprovethewaterretentionofmortarbutsignificantlyreduceitsmechanicalproperties.Whenthemixingamountis0.27%,thewaterretentionrateofmortarreaches99.4%.Whendiatomiteismixedwithcellulose,thewaterretentionrateis≥99%,andtheamountofcelluloseissignificantlyreduced,whichhasbettereconomicandenvironmentalvalue.

英文名 : Study on Water Retention of Mortar in Thin Mortar Joints of Autocluded Aerated Concrete Blocks

刊期 : 2020年第7期

关键词 : 低品位硅藻土；纤维素醚；保水率；薄灰缝砌筑砂浆

Key words : Low grade diatomite; Cellulose ether; Water retention; Thin mortar joint masonry mortar

刊期 : 2020年第7期

DOI : 10.19761/j.1000-4637.2020.07.026.04

文章编号 :

基金项目 : 吉林省科技发展计划项目（20180312018EX）。

作者 : 肖力光，邢纹浩

单位 : 吉林建筑大学材料科学与工程学院，长春 130118

肖力光，邢纹浩

肖力光,邢纹浩.蒸压加气混凝土砌块薄灰缝砌筑砂浆保水性研究[J].混凝土与水泥制品,2020(7):26-29.

XIAO Li-guang,XING Wen-hao.Study on Water Retention of Mortar in Thin Mortar Joints of Autocluded Aerated Concrete Blocks[J].China Concrete and Cement Products,2020(7):26-29.

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摘要

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结论

参考文献

引用本文

Abstract: The water retention performance of low-grade diatomite and cellulose ether in thin mortar mortar was studied. The test results show that the activated treatment of diatomite can significantly improve the water retention and mechanical properties of the mortar. The water retention rate of the thin mortar mortar treated by mechanical activation for 10 min and thermal activation at 600 ℃ for 2 h is up to 95.7%, which is 22% higher than that of the blank group. HPMC can improve the water retention of mortar but significantly reduce its mechanical properties. When the mixing amount is 0.27%, the water retention rate of mortar reaches 99.4%. When diatomite is mixed with cellulose, the water retention rate is ≥99%, and the amount of cellulose is significantly reduced, which has better economic and environmental value.

关键词:

低品位硅藻土；纤维素醚；保水率；薄灰缝砌筑砂浆

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蒸压加气混凝土砌块薄灰缝砌筑砂浆保水性研究

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