The Flow Properties of Some Chemical Additives Used in Modification of Natural Zeolite for Cement Concrete

Morozova, Nina; Qais, Hamzah

doi:10.9734/jsrr/2016/23541

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2017

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“…and superplasticizers provide substantial increase in process and performance characteristics of concrete [5][6][7][8][9][10][11]. To ensure further development of concrete technology in this direction, it is required to develop additives based on cheap, widely used raw materials, including siliceous rock of sedimentary origin -opoka, diatomite, zeolites [12][13][14][15][16].…”

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confidence: 99%

Combined Influence of Opoka and Slag on Cement Properties in Presence of Superplasticizer

Коровкин

Ерошкина

2017

SSP

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The influence of the milled opoka of Penza field and blast-furnace slag with the polycarboxylate superplasticizer present on the properties of mortar component of the concrete based on blended cement, including Portland cement, fly ash, blast-furnace slag, silica fume, and microquartz has been investigated. Some equations for the dependency of water requirement of the cement mortar component, as well as of its strength with various values of time on proportion of superplasticizer and components of blended binder have been developed. It has been shown that the introduction of opoka increases the water requirement of the mix, insignificantly decreasing the strength, when proportioned up to 15%. The detrimental effect of opoka on the strength considerably reduces with higher superplasticizer content and lower water-to-cement ratio.

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