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Рекомендации по подбору состава бетонов на вторичных заполнителях с разномодульными включениями

Рекомендации по подбору состава бетонов на вторичных заполнителях с разномодульными включениями

Abstract

The properties of concrete with cube compressive strength up to 66 MPa made of re-used aggregates were studied in comparison with ND concrete. Both re-used aggregates obtained from ND and LWA concrete in different proportions were used. Sulfo-aluma expansive admixture was used to compensate high shrinkage of concrete made of re-used aggregates. The relationships between compressive strength and E-modulus, strain at the peak stress, indirect tensile strength and others are discussed and recommended for practical use. Regulations estimates of destination are proposed.

Приведены основные положения, касающиеся подбора составов бетонов с компенсированной усадкой на вторичных заполнителях с низкомодульными включениями в виде дробленого керамзитобетона, назначения оптимального количества расширяющей добавки для компенсации усадки, особенностей материалов, а также особенностей приготовления, транспортирования и укладки бетонной смеси. Разработаны предложения по нормативным и расчетным характеристикам основных показателей назначения бетонов.

Keywords

ВТОРИЧНЫЕ ЗАПОЛНИТЕЛИ, НИЗКОМОДУЛЬНЫЕ ВКЛЮЧЕНИЯ, РАЗНОМОДУЛЬНЫЕЗАПОЛНИТЕЛИ, СУЛЬФОАЛЮМИНАТНАЯ ДОБАВКА, САМОНАПРЯЖЕНИЕ, КОНТРАКЦИЯ ЦЕМЕНТНОГО КАМНЯ, СОБСТВЕННЫЕ ДЕФОРМАЦИИ, УСАДКА БЕТОНА КОНСТРУКЦИЙ, КОМПЕНСАЦИЯ УСАДОЧНЫХ ДЕФОРМАЦИЙ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold