Author: Ellis L. Krinitzsky
Publisher:
ISBN:
Category : Gravel
Languages : en
Pages : 178

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Author: E. L. Krinitzsky
Publisher:
ISBN:
Category : Gravel
Languages : en
Pages : 0

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Laterization processes were studied and samples of laterite gravel collected at 40 sites in Thailand, Australia, Brazil, Ghana, Portuguese Angola, and Georgia (USA) to determine classification, field associations, genesis, and engineering properties important in road and airfield construction. Lateritic soils are self-hardening and may contain either laterite rock or nodular, laterite gravel. Tropical soils which are not self-hardening and which lack appreciable laterite rock or laterite gravel are called here tropical red soils. The soils studied in this report classify as sands and gravels in the Unified Soil Classification System. Generally they are poorly sorted, strongly fine-skewed, leptokurtic, and, on the average, contain approximately 12 percent fines. These soils have originated by the hydrolytic destruction of primary silicate minerals in warm, tropical to subtropical weathering environments which exhibit distinct wet and dry seasons, and are generally free draining. Laterite gravel is of primary importance in construction. Laterite rock requires crushing, and self-hardening laterite may be difficult to identify and thus may be confused with tropical red soils. Foreign engineers have found that two official U.S. specifications are too restrictive. They have developed base and subbase specifications suitable for road and airfield construction using laterite gravel.

Author: S.O. Ekolu
Publisher: IOS Press
ISBN: 1614994668
Category : Technology & Engineering
Languages : en
Pages : 1562

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The two volumes of these Proceedings contain about 200 conference papers and 10 keynote papers presented at the First International Conference on Construction Materials and Structures, held in Johannesburg, South Africa from 24 to 26 November 2014. It includes sections on Materials and characterization; Durability of construction materials; Structural implications, performance, service life; Sustainability, waste utilization, the environment; and Building science and construction.

Author: F. G. Bell
Publisher: Elsevier
ISBN: 1483105210
Category : Technology & Engineering
Languages : en
Pages : 158

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Book Description
Engineering Properties of Soils and Rocks, Second Edition provides a survey of the engineering properties of the major types of soil and rock. The book is comprised of nine chapters that tackle the various aspects of soils and rocks. Chapter 1 covers the origin of soil and the basis of soil classifications. Chapters 2 to 5 discuss the different types of soils, such as coarse grained soils, cohesive soils, and organic soils. Chapter 6 deals with the engineering behavior of rock masses, while Chapter 7 talks about the engineering classifications of weathered rocks and rock masses. Chapter 8 discusses the engineering properties of rocks, and Chapter 9 covers subsurface waters and ground conditions. The text will be of great use to both undergraduate students and practitioners of engineering geology, civil engineering, and mining engineering.

Author: U.S. Army Engineer Waterways Experiment Station
Publisher:
ISBN:
Category : Hydraulic engineering
Languages : en
Pages : 624

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Author: Benjamin S. Persons
Publisher: Springer Science & Business Media
ISBN: 1468472151
Category : Science
Languages : en
Pages : 113

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In comparison with engineering, geology is a relatively new domain of know ledge. Man has been building almost from the moment he came down out of the trees or emerged from the caves. All of his structures were founded in or upon rock or soil. Before the end of what we call ancient history, he had learned a great deal about materials, mechanics, and structures. This empirical information had become an organized field of practical knowledge by the time of Leonardo da Vinci. Although both foundations and ma terials of construction were largely earthy, codified knowledge of neither one nor the other existed at that time. During the last two centuries, geology has emerged and has recently begun to take on a more quantitative aspect. A generation ago, it joined hands with civil engineering to create soil mechanics. Engineers began to apply the science of geology to foundations and materials with astoundingly successful results, and geologists began to acquire an understanding of engineering methods, applying what they could to their problems. Geologi cal engineering was born of this union. People of an older time employed stone and brick in construction, although cut brick and sawed stone were used more sparingly because of a scarcity in both suitable raw materials and techniques. They were used in Cambodia, for example. A material able to meet requirements was found nearby, known as itica culla. In India it was called vettu culla, but F. A.

Author: Waterways Experiment Station (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 700

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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1256

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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1282

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Author: Raymond Nen Yong
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 462

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