碱激发矿粉-粉煤灰混凝土耐久性能试验研究_《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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碱激发矿粉-粉煤灰混凝土耐久性能试验研究

Experimental Study on Durability of Alkali-activated Mineral Powder and Fly Ash Concrete

2022年第9期

机制砂碱激发混凝土；蒸养制度；收缩开裂；耐久性能

Manufactured sand alkali-activated concrete(MAAC); Steaming method; Shrinkage cracking; Durability

2022年第9期

10.19761/j.1000-4637.2022.09.095.04

任君1，王允波2，徐伟伟2，张思雨2，王玉璞2，王腾2

1.青建集团股份公司，山东青岛 266001；2.青岛青建新型材料集团有限公司，山东青岛 266109

任君1，王允波2，徐伟伟2，张思雨2，王玉璞2，王腾2

任君,王允波,徐伟伟,等.碱激发矿粉-粉煤灰混凝土耐久性能试验研究[J].混凝土与水泥制品,2022(9):95-98.

REN J,WANG Y B,XU W W,et al.Experimental Study on Durability of Alkali-activated Mineral Powder and Fly Ash Concrete[J].China Concrete and Cement Products,2022(9):95-98.

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摘要：研究了激发剂模数、养护方式和粉煤灰掺量对机制砂碱激发混凝土（MAAC）耐久性能的影响。结果表明：与20 ℃标养相比，60 ℃蒸养MAAC的收缩率降低明显，耐久性能增强；掺入20%粉煤灰后，MAAC的收缩性能有所改善，抗硫酸盐侵蚀性能有所减弱，但在蒸养条件下，掺入20%粉煤灰可以在一定程度上提高MAAC的抗氯离子侵蚀能力；随着碱激发剂模数由2.0降至1.8，MAAC的耐久性能有所增强。 Abstract: The effects of activator modulus, curing method and fly ash content on the durability of manufactured sand alkali-activated concrete(MAAC) were studied. The results show that compared with the standard curing at 20 ℃, the shrinkage rate of MAAC in steam curing at 60 ℃ is significantly reduced, and the durability is enhanced. After adding 20% fly ash, the shrinkage performance of MAAC is improved, the resistance to sulfate corrosion is weakened, but under steam curing conditions, adding 20% fly ash can improve the chloride ion corrosion resistance of MAAC to a certain extent. The durability of MAAC is enhanced with the decrease of alkali activator modulus from 2.0 to 1.8.

英文名 : Experimental Study on Durability of Alkali-activated Mineral Powder and Fly Ash Concrete

刊期 : 2022年第9期

关键词 : 机制砂碱激发混凝土；蒸养制度；收缩开裂；耐久性能

Key words : Manufactured sand alkali-activated concrete(MAAC); Steaming method; Shrinkage cracking; Durability

刊期 : 2022年第9期

DOI : 10.19761/j.1000-4637.2022.09.095.04

文章编号 :

基金项目 :

作者 : 任君1，王允波2，徐伟伟2，张思雨2，王玉璞2，王腾2

单位 : 1.青建集团股份公司，山东青岛 266001；2.青岛青建新型材料集团有限公司，山东青岛 266109

任君1，王允波2，徐伟伟2，张思雨2，王玉璞2，王腾2

任君,王允波,徐伟伟,等.碱激发矿粉-粉煤灰混凝土耐久性能试验研究[J].混凝土与水泥制品,2022(9):95-98.

REN J,WANG Y B,XU W W,et al.Experimental Study on Durability of Alkali-activated Mineral Powder and Fly Ash Concrete[J].China Concrete and Cement Products,2022(9):95-98.

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摘要

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结论

参考文献

引用本文

Abstract: The effects of activator modulus, curing method and fly ash content on the durability of manufactured sand alkali-activated concrete(MAAC) were studied. The results show that compared with the standard curing at 20 ℃, the shrinkage rate of MAAC in steam curing at 60 ℃ is significantly reduced, and the durability is enhanced. After adding 20% fly ash, the shrinkage performance of MAAC is improved, the resistance to sulfate corrosion is weakened, but under steam curing conditions, adding 20% fly ash can improve the chloride ion corrosion resistance of MAAC to a certain extent. The durability of MAAC is enhanced with the decrease of alkali activator modulus from 2.0 to 1.8.

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