FINE-GRAINED HYDRAULIC ENGINEERING CONCRETES WITH SUPERPLASTICIZER AND FLY ASH ADDITIVES
Authors
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A.A. Sagyndykov
Kazakh National University of Water Management and Irrigation, Taraz, Kazakhstan
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Zh.T. Suleimenov
Kazakh National University of Water Management and Irrigation, Taraz, Kazakhstan
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B.A. Karymsakov
Kazakh National University of Water Management and Irrigation, Taraz, Kazakhstan
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D.G. Alimkulova
Kazakh National University of Water Management and Irrigation, Taraz, Kazakhstan
DOI:
https://doi.org/10.55956/CKZS6793Keywords:
hydraulic fine-grained concrete, superplasticizer, strength, frost resistance, water impermeability, microsilica, corrosion resistanceAbstract
The objective of the study was to develop a composition of hydraulic fine-grained concrete and to investigate its rheological and physicomechanical properties using the SP-1 superplasticizer and silica fume. The influence of mechanically activated fly ash, silica fume, and a superplasticizer on the technological and physicomechanical properties of fine-grained hydraulic concrete was investigated. The incorporation of activated fly ash, SP-1 superplasticizer, and basalt fiber in an amount of 7-10 kg/m³ into the concrete mixture contributes to an increase in the workability of the concrete mix (140-160 mm), compressive strength (Rc28 = 48.2 MPa), flexural strength (5.4-7.7 MPa), water resistance (W10), frost resistance (F300), and corrosion resistance of the concrete.
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