By M. R. Smith, G. West, P. G. Fookes, J. Lay, I. Sims, L. Collis
In 1985, the Geological Society released Aggregates because the first quantity in its Engineering Geology targeted book sequence. It met with speedy acclaim, being presented the Brewis Trophy by means of SAGA in 1986 and drawing the next evaluate from the Canadian Geotechnical magazine in 1988: This booklet is generally a well-researched, informative and worthy advisor to the site, sampling and trying out of aggregates. in the event that your paintings includes using aggregates, purchase this ebook and browse no extra; this quantity might be an important and priceless reference that you're going to use for a few years. In 1989, the operating get together whose paintings had led to the book of Aggregates used to be reconvened to revise, replace and expand their record. each one bankruptcy was once reviewed via self reliant referees. the second one and drastically superior version, released in 1993 and reprinted in 1998, represented the distillation of an enormous physique of information and adventure held not just by means of the participants of the operating occasion, but in addition by means of many foreign specialists, scientists and engineers who contributed as reviewers, referees and corresponding authors. additionally on hand: typical Stone, Weathering Phenomena, Conservation techniques and Case reports - ISBN 1862391238 development Stone Decay: From prognosis to Conservation - distinct booklet no 271 (Geological Society exact ebook) - ISBN 1862392188 The Geological Society of LondonFounded in 1807, the Geological Society of London is the oldest geological society on the earth, and one of many greatest publishers within the Earth sciences.The Society publishes quite a lot of top quality peer-reviewed titles for teachers and pros operating within the geosciences, and enjoys an enviable foreign acceptance for the standard of its work.The many components within which we put up in include:-Petroleum geology-Tectonics, structural geology and geodynamics-Stratigraphy, sedimentology and paleontology-Volcanology, magmatic reports and geochemistry-Remote sensing-History of geology-Regional geology publications
Read or Download Aggregates: Sand, Gravel and Crushed Rock Aggregates for Construction Purposes, 3rd Edition (Geological Society Engineering Geology Special Pub. No.17) PDF
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Extra resources for Aggregates: Sand, Gravel and Crushed Rock Aggregates for Construction Purposes, 3rd Edition (Geological Society Engineering Geology Special Pub. No.17)
The properties of gravel and, to a lesser extent, of sand largely depend on the rocks from which they are derived, although during their transport prior to deposition weathered or otherwise weaker fragments tend to be selectively worn away so that the resulting aggregate material is usually stronger than the crushed parent rock (Harris et al. 1974, p. 336). i9 t sandstone Uniformmassive . ' . bedding (parallel o, ~ ,o~ 8 l<~ c~c:~o<~,:,l depositionaltexture) withdiscretebedding planes,'flaggy' 4 ~ C~ withlongaxesof pebbles inclinedat bedding;matrixsupported angleto ,,o , o~ Heterogenousbed ~o~oiol of conglomerate polo ,-,o~;I containing lenses I c o0- 0~'~1 of sand and gravel I~ ~ o O 5 I~176 FIG.
The mechanical disintegration of rocks in upland areas may produce large amounts of predominantly angular rock debris or talus. In the absence of running water and where slopes are steep, large-scale accumulations of debris near to the angle of rest (screes) may provide a ready source of coarse aggregate material, though it must be remembered that it may have been adversely affected by long exposure to weathering and any disturbance by working may render the loose material unstable and therefore hazardous.
N // a ~ d Contorted ) Ke t t i e till ~_------. End r ~ Drainage FIG. 9. The relationship between the various glacial materials and landforms associated with ice standstill and retreat (see Fig. 11 also). After West (1977). (a) The location of basal, marginal and proglacial deposition near the maximum extension of an ice sheet. (b) After retreat of the ice, till and ice-contact deposits remain. may be moulded over an upstanding core of solid rock (a roche moutonn~e when exposed), their long axes being characteristically aligned with the direction of ice movement.