无碱液体速凝剂的制备及其性能研究_《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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无碱液体速凝剂的制备及其性能研究

Study on the Preparation and Performance of Alkali-free Liquid Accelerator

2021年第8期

化学外加剂；叠加复配；液体速凝剂；物理性能

Chemical admixture; Superposition compound; Liquid accelerator; Physical property

2021年第8期

10.19761/j.1000-4637.2021.08.028.05

周红燕，张耀

苏州方正工程技术开发检测有限公司，江苏苏州 215000

周红燕，张耀

周红燕,张耀.无碱液体速凝剂的制备及其性能研究[J].混凝土与水泥制品,2021(8):28-31,36.

ZHOU H Y,ZHANG Y.Study on the Preparation and Performance of Alkali-free Liquid Accelerator[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):28-31,36.

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摘要：以硫酸铝和三乙醇胺作为速凝剂的主体组分，掺入甘油、氟化钠、改性乙二醇、草酸、无机酸5种调节组分配制了无碱速凝剂，确定了硫酸铝、三乙醇胺、草酸、甘油、改性乙二醇、无机酸的合理掺量。结果表明：采用制备的速凝剂可使试件的初凝时间小于5 min，终凝时间小于12 min，1 d抗压强度达到7.5 MPa，7 d抗压强度达到34.2 MPa，稳定性满足现行标准的要求。 Abstract: A alkali-free accelerator was prepared by using aluminum sulfate and triethanolamine as the main components and adding glycerin, sodium fluoride, modified ethylene glycol, oxalic acid and inorganic acid. The reasonable dosage of aluminum sulfate, triethanolamine, oxalic acid, glycerin, modified ethylene glycol and inorganic acid was determined. The results show that the specimen with prepared accelerator has an initial setting time of less than 5 min and a final setting time of less than 12 min. The 1 d compressive strength of the specimen reaches 7.5 MPa, and the 7 d compressive strength reaches 34.2 MPa, and its stability meets the requirements of current standards.

英文名 : Study on the Preparation and Performance of Alkali-free Liquid Accelerator

刊期 : 2021年第8期

关键词 : 化学外加剂；叠加复配；液体速凝剂；物理性能

Key words : Chemical admixture; Superposition compound; Liquid accelerator; Physical property

刊期 : 2021年第8期

DOI : 10.19761/j.1000-4637.2021.08.028.05

文章编号 :

基金项目 :

作者 : 周红燕，张耀

单位 : 苏州方正工程技术开发检测有限公司，江苏苏州 215000

周红燕，张耀

周红燕,张耀.无碱液体速凝剂的制备及其性能研究[J].混凝土与水泥制品,2021(8):28-31,36.

ZHOU H Y,ZHANG Y.Study on the Preparation and Performance of Alkali-free Liquid Accelerator[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(8):28-31,36.

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引用本文

Abstract: A alkali-free accelerator was prepared by using aluminum sulfate and triethanolamine as the main components and adding glycerin, sodium fluoride, modified ethylene glycol, oxalic acid and inorganic acid. The reasonable dosage of aluminum sulfate, triethanolamine, oxalic acid, glycerin, modified ethylene glycol and inorganic acid was determined. The results show that the specimen with prepared accelerator has an initial setting time of less than 5 min and a final setting time of less than 12 min. The 1 d compressive strength of the specimen reaches 7.5 MPa, and the 7 d compressive strength reaches 34.2 MPa, and its stability meets the requirements of current standards.

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