Sentence examples for grades of sand from inspiring English sources

Certain grades of sand or sometimes proppant made of ceramic beads are matched to certain kinds of rock, and the wells are fracked in stages, as many as 40 stages per well.

Quaternary sediments comprising of various grades of sand, calcareous concretions, and clay overlie the area.

More detailed studies may throw light on this aspect of clay sand interactions with different grades of sand.

Three grades of sand were mixed separately with the fractionized clays to form six sets of natural clay sand series.

Three grades of sand were mixed separately with the selected clay to form six commercial clay sand series.

It is to be noted that, since this was a preliminary attempt to understand the effect of gradation of sand clearly, this study was restricted to use of individual grades of sand and not in combination.

Three grades of sands and two matrix compositions were used, and single fiber tests were performed to study the interfacial bond strengths.

An industrial rotating sander with different grades of sanding discs was used to smooth the cut surface before polishing to a blemish-free surface with household metal polish.

His friend the architect Le Corbusier encouraged him to pursue and refine the casting technique, using a finer grade of sand instead of the salty beach sand that caused the early works to erode.

It thus implies that proper selection of grade of sand is also important along with the optimum content to obtain higher strength of a clay sand mixture.

Differences in grade of sand accumulation were analysed using the Mann-Whitney test.