Application of artificial sand in anti-freezing concrete for waterway engineering
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    Abstract:

    At present,the technical indexes of artificial sand are all carried out according to the standards of the Ministry of Construction.However,the allowable content of artificial sand powder in the standard is relatively large,and no specific provisions are made for artificial sand in anti-freezing concrete.We prepare the anti-freezing concrete by adding single fly ash or double fly ash and mineral powder with the different mixing proportions of river sand and artificial sand,and analyze the effects of various factors on the mixture properties,strength and durability of anti-freezing concrete.Based on an engineering example,the results show that the gradation of single artificial sand is poor,and it is advisable to mix it with river sand to effectively control the content of stone powder.Adding appropriate amount of admixtures can improve the performance of artificial sand concrete,and increase the mechanical property and durability of concrete.

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李 青,王玉玲,苗爱英,孙俊丰,李长吉,李源财.人工砂在水运工程抗冻混凝土中的应用[J].水运工程,2019,(S1):71-76

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  • Online: May 15,2019
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