Exact(8)
Test results indicate that the use of lightweight sand was shown to be more effective in mitigating shrinkage than enhancing compressive strength.
The obtained results show that it is quite possible to develop a lightweight sand concrete by the incorporating, separately and in combination, of barley straws and wood shavings.
The replacement of natural sand by 60% of lightweight sand, by volume, was found to reduce autogenous shrinkage from 530 to 35 µm/m at 91 d.
This included the use of various contents of CaO-based and MgO-based expansive agents, shrinkage-reducing admixture, and pre-saturated lightweight sand.
In some combination, the use of shrinkage mitigating admixtures was found to reduce the 91-d compressive strength ranging from 8to2020 MPa, even when 60% lightweight sand was employed.
This paper presents an experimental study to evaluate effect of cumulative lightweight aggregate (LWA) content (including lightweight sand) in concrete [water/cement ratio (w/c) = 0.38] on its water absorption, water permeability, and resistance to chloride-ion penetration.
Similar(52)
This paper presents the testing of 12 continuous beams made of all-lightweight, sand-lightweight and normal weight concrete having maximum aggregate sizes of 4, 8, 13 and 19 mm.
This paper reports the results of investigations on manufacturing lightweight aggregate from sand sludge.
Similar results were obtained when a lightweight matrix containing sand was subjected to the same sea water environment.
This paper reports the results of investigations on manufacturing lightweight aggregates from sand sludge with zeolitic rocks added to decrease the foaming temperature.
The properties of lightweight aggregates from sand sludge depend on both, the preliminary firing temperature of the frit and the foaming temperature of the green granules.
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