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Performance Studies On Rigid Pavement Sections Built On Stabilized Sulfate Soils
(Civil & Environmental Engineering, 2007-08-23)
Soils of Southeast Arlington are highly expansive and rich in sulfates. They undergo sulfate induced heaving when traditional calcium based stabilizers are used for soil stabilization (Puppala et al. 1998). Traditional ...
Performance And Check-out Verification Testing Of A New True Triaxial Apparatus Using Partially Saturated Silty Sand
(Civil & Environmental Engineering, 2007-08-23)
A stress-controlled, flexible boundary, true triaxial (cubical) testing apparatus has been developed to test 3-inch cubical specimen of partially saturated soil under different moisture contents and for a wide range of ...
Impact Of Lateral Swell Pressure On Retaining Structure Design Using Expansive Cohesive Backfill
(Civil & Environmental Engineering, 2008-08-08)
Since cohesive soils are difficult to drain once becoming saturated, in order to reduce lateral earth pressures exerted by saturated cohesive soils on retaining structures, retaining wall designs most always specify use ...
Experimental Studies To Address Strengths Of Limestone Cores, Sulfate Heave Problems In Limestone Cores And Tunnel Lining
(Civil & Environmental Engineering, 2007-08-23)
Sulfate induced heave is a common scenario in tunnels located on sedimentary rocks containing Pyrites. Pyrite oxidation produces Gypsum which is a major source of natural sulfates. DART NC -1B tunnel is located in Dallas, ...
Comparison Of Dust Generation From Open Cut And Trenchless Technology Methods For Utility Construction
(Civil & Environmental Engineering, 2011-07-14)
Construction industry has changed many aspects of human life and is still evolving at a rapid pace. New and better technologies which are environmentally friendly and safe are being introduced in this industry. But with ...
Ductile Lightweight Concrete For Lightweight Structural Application
(Civil & Environmental Engineering, 2008-08-08)
This study developed a ductile concrete for precast wall systems which are capable of resisting high wind in excess of 500 mph. The developed concrete mix design consists of sand, cement, glass fiber, and a foaming agent ...
Carbon Footprint Analysis Of A Large Diameter Water Transmission Pipeline Installation
(Civil & Environmental Engineering, 2011-07-14)
The term pipeline refers to a long line of connected segments of pipe, with pumps, valves, control devices, and other equipment or facilities needed for operating the system. Water transmission pipelines are generally large ...
An Overview Of Mitigation Strategies For Settlements Under Bridge Approach Slabs
(Civil & Environmental Engineering, 2012-04-11)
Settlement and heave related movements of bridge approach slabs relative to bridge decks create a bump in the roadway causing inconvenience to the travelling public and at times so large as to make travelling unsafe. Hence, ...
Sustainable Reutilization Of Excavated Trench Material
(Civil & Environmental Engineering, 2012-04-11)
Sustainability is becoming a key factor in most construction projects. In most construction projects, personnel are spending efforts to understand the social, economic and environmental impacts of the various facets of ...
The Effects Of A Variable Modulus Of Elasticity On Prestress Losses In Bridge Girders
(Civil & Environmental Engineering, 2011-10-11)
The purpose of this research is to evaluate a method proposed by Franz Dischinger (Dischinger, 1939) to consider the effects of a variable modulus of elasticity (MOE) of concrete over a period of time. Current guidelines ...