"sand proportion" is a correct and usable phrase in written English.
It can be used to refer to the amount of sand in relation to other elements, such as soil, gravel, or plant material. For example, "The sand proportion of the soil in this region needs to be monitored more closely."
The geomechanical experiments such as specific gravity, compaction, unconfined compression, direct shear and falling head permeability were executed to define an optimum amount of bentonite and sand proportion for designing and constructing a better nuclear waste disposal facility.
The highest proportion was observed under TLCL and PAF (58.3 %, Table 1) whereas; the lowest sand proportion was recorded under PWL, followed by MPL.
Concretes C3, C4, and C5, having high sand proportions, have recorded decreases in strengths explained by their water content being high and quickly frozen.
Although the grazing land had low sand proportions at this altitude, mean percentage sand content at the surface (0 15 cm) layer showed no significant difference (P > 0.01) between the soils under all the land use/land cover systems.
In contrast, a study by Alghamdi and Jais [47] in Saudi Arabia found a negative correlation of AMF with sand proportions but positive and strong correlation of AMF with silt and clay under Juniperus procera.
Expressed as a fraction of the sand content of the soils the fine sand proportions are about 60%% for the topsoil at Site 1 and 82 % for the subsoil, compared with more than 95%% for both the top- and subsoils at Site 3. The implications of these are discussed later.
On one hand, it is shown in this paper that the mortars bulk and apparent friction factors increase with sand addition proportion.
Fly ash was used to replace natural sand in proportions of 30%, 50 % and 80 by weight of natural sand.
The cement:sand:gravel proportions in the concrete mix are 1 1.73:2.93 by weight and the water/cement ratio is 0.50.
In the second phase fly ash was used to partially replace natural sand in that proportion of CCA and WG which had highest compressive strength.
Mortars with water/cement ratio of 0.4, MLG dosage varying from 0.015 to 0.033% by weight of cement and sand at a proportion of 3× the weight of cement were prepared.
