water absorption of recycled concrete aggregate

Water Absorption of Aggregate – CivilWeb Spreadsheets

The water absorption of aggregate used for concrete has a significant effect on the required water content of the mix in order to produce concrete which is sufficiently workable in its fresh state and sufficiently strong in its hardened state.

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Examining the Variability of Recycled Concrete Aggregate

Properties included in the experimental work are variability in aggregate size (20 mm and. 10 mm), shape and texture, gradation, specific gravity, water absorption, ... autor: S Yehia · ‎Počet citací tohoto článku: 6 · ‎Související články

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Evaluation of concrete made with coarse recycled aggregate

Recycled concrete aggregate. (RCA) from concrete waste. ▫Some of the problems to use RCA is. ▫ its higher water absorption. ▫ and its lower specific mass.

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PDF) Cement paste content and water absorption of recycled

To avoid variation of concrete consistency, several studies proposed to immerse recycled aggregates in water during 10 min to obtain a complete saturation state [35,36], which enables to avoid the ...

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Estimation of Water Absorption Capacity of Hardened Concrete

Recycled construction and demolition waste, especially recycled concrete, is able to use as an aggregate for concrete. The high water absorption capacity (WA) of recycled aggregate has a negative impact of concrete mix workability and influences the water-cement ratio.

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THE DURABILITY OF RECYCLED AGGREGATES AND ... - TARA

and particle shape, apparent relative density, water absorption and. 10% fines value. ... Key words: Recycled aggregate concrete, Durability, Youngs Modulus,.

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The Environmental Impact of Recycled Concrete

Water absorption of masonry recycled aggregates, concrete recycled aggregates and the mixtures of two ones must be a maximum of 20%, 10% and 3% respectively in mass of aggregates (Rilem, 1994). Sagoe-Crentsil et al (2001) investigated the relation between fine natural aggregates and coarse

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Deterioration of recycled concrete aggregate under the

The water absorption remained largely unchanged for RCA exposed at pH 8, but dropped for RCA exposed at pH 4. After the exposure to water drainage the RCA ...

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Quantification of Recycled Concrete Aggregate (RCA) Properties for

Therefore, the additional mixing water reserved for aggregate absorption during mixing may not be fully absorbed by the aggregates in the period between ...

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Self-healing concrete with recycled aggregates - ScienceDirect

Jan 01, 2020 · This behavior could be explained by the lower water absorption of the biotreated recycled aggregate, so that greater water quantity could be available in the concrete paste to accelerate the formation of cement hydration products, increasing the compressive strength of the concrete sample at early age.

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