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In comparison, there are less significant effects of concrete strength and maximum coarse aggregate size on β.
Thus, in this experimental study, major mechanical properties of SCC are investigated for twelve SCC mixes with wide spectrum of different variables i.e. maximum coarse aggregate size, coarse aggregate volume and aging.
Six different concrete mixes having two mixture proportions (24 and 50 MPa) and three maximum coarse aggregate sizes (10, 20 and 25 mm) were selected and pumped into 170 m and 1000 m pipelines at different pumping pressures.
The maximum coarse aggregate size was 25 mm.
Larger maximum coarse aggregate size increased the viscosity of the concrete and the slip layer.
Concrete mixtures under the same compressive strength showed degradation of pumping performance as the maximum coarse aggregate size increased.
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All investigations were based on 10 concrete mixture designs containing variable volume fractions and maximum sizes of natural coarse aggregate for maximum exposure period of 170 days.
This paper presents and discusses the effect of maximum size of coarse aggregate on fracture characteristics and brittleness of self-compacting concrete (SCC).
However, decreasing the w/c by the inclusion of WRA or HRWRA requires a decrease of the maximum size of coarse aggregate and some adjustment in the granular size distribution system.
The time-dependent model of surface chloride concentration, and the multifactor model of chloride diffusion coefficient of concrete specimens included exposure time, volume fraction, and maximum size of coarse aggregate were developed based on the experimental measurements.
The maximum size of coarse aggregate was 10 mm.
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