When slaked for making mortar, if pit sand be used, three parts of sand are mixed with one of lime.
3. but plaster readily adheres to and dries on walls built with new pit sand, and vaulting may safely spring from them.
Though pit sand is excellent for mortar, it is unfit for plastering; for being of such a rich quality, when added to the lime and straw, its great strength does not suffer it to dry without cracks.
The optimum strength of the pit sand-cement mortar prisms after 1, 2, 7, and 28 days was recorded at 11.11% RHA by the mass of the cement.
Anthropogenic water bodies namely fish ponds, clay pits, sand pits, dam reservoirs or mining subsidence pools are the characteristic feature of Upper Silesian landscape.
In such cases, river or sea-sand may be substituted for pit-sand; cypress, poplar, elm, and pine, for the different sorts of fir; and the like of the rest, according to circumstances.
For it cannot be expected that good pit-sand, stone, fir of either sort, or marble, can be procured every where in plenty, but they must, in some instances, be brought from a distance, with much trouble and at great expense.
Simms testified that a gold fiber with a "rough, pitted, sand-blasted appearance" lifted from the sweat shirt matches the gold thread found in the CHP shoulder patches taken from Peyer's jacket.
"One day in August a man disappeared". So begins this bizarre tale of an entomologist trapped by the strangest of predators: a voracious pit of sand.
The site had been used in the past as a burrow pit where sand was mined for the Lagos Ibadan road construction.
In the weeks leading up to the spill, dozens of students have been labouring at the gravel pit, shovelling sand into bags.
