EFFECT OF GRAIN SIZE ON STRENGTH OF MIXTURES OF CLAY, SAND, AND WATER

Abstract

Research Article| May 01, 1959 EFFECT OF GRAIN SIZE ON STRENGTH OF MIXTURES OF CLAY, SAND, AND WATER PARKER D TRASK PARKER D TRASK DEPARTMENT OF ENGINEERING, UNIVERSITY OF CALIFORNIA, BERKELEY 4, CALIFORNIA Search for other works by this author on: GSW Google Scholar Author and Article Information PARKER D TRASK DEPARTMENT OF ENGINEERING, UNIVERSITY OF CALIFORNIA, BERKELEY 4, CALIFORNIA Publisher: Geological Society of America Received: 11 Mar 1958 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1959, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1959) 70 (5): 569–580. https://doi.org/10.1130/0016-7606(1959)70[569:EOGSOS]2.0.CO;2 Article history Received: 11 Mar 1958 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation PARKER D TRASK; EFFECT OF GRAIN SIZE ON STRENGTH OF MIXTURES OF CLAY, SAND, AND WATER. GSA Bulletin 1959;; 70 (5): 569–580. doi: https://doi.org/10.1130/0016-7606(1959)70[569:EOGSOS]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Many factors affect the strength of what engineers call soil. This report deals primarily with the effect of the grain size of sand or silt particles mixed with the clay in the soil. In order to understand the effect of grain size, the influence of (1) water content, (2) type of clay mineral, and (3) ratio of clay to sand in the soil must be known. The effect of these four variables was investigated by measuring the strength of a series of synthetic soils in which the water content, clay type, clay-sand ratio, and grain size of admixed sand were changed from one experiment to another. For given water content, kaolin and illite are essentially equal in strength, and both are much weaker than mont-morillonite. Ball clay—a kaolin containing organic matter—is intermediate in strength. For all clays the strength increases, for given water content and given grain size, as the ratio of clay to sand increases. For given water content and given clay-sand ratio, the strength increases as the grain size of the sand decreases below 135 microns. For coarser sand, grain size has little effect. The cause of the greater strength for increasing fineness of sand is ascribed to the well-known principle of greater surface area upon which forces can act. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.