Terminal Asphalt Patching: An Innovative Approach
Asphaltic concrete has dominated the terminal industry as the pavement of choice for years. It is readily available and economical to install but requires considerable maintenance expense....

Properties of Aggregate-Cement Interface for High Performance Concrete
An experimental study of the interfacial zone between aggregate and cement paste was undertaken. Various factors such as type of aggregate, treatment of aggregate surface, mixing process...

Scrap Tires Used in Rubber-Modified Asphalt Pavement and Civil Engineering Applications

Evaluation of Fine Aggregate Particle Shape and Texture
In an effort to minimize or eliminate permanent deformation (rutting) of heavy duty asphalt pavements most governing agencies now limit the amount of natural sand which generally (not...

The Economic and Environmental Consideration of Beach Sand Mining in St. Lucia, West Indies

Recycling Bituminous Runway Pavement into Aggregate Base Course
The paper discusses the development of recycling existing bituminous runway pavement by pulverizing into aggregate base course. To best explain the design, construction procedures and...

Heavy Minerals and Aggregates Developments Nearshore Nova Scotia, Canada
This paper highlights past to present nearshore Scotian Shelf heavy mineral and aggregate exploration activities and findings. Promising sites for heavy minerals, gold and extensive sand...

Deformation of Concrete Due to Drying
The deformation of drying concrete is numerically investigated considering the effect of random arrangement of coarse aggregates. The result indicates that a part of the statistical variation...

U.S. Construction Aggregates
Crushed stone and sand and gravel are the two main sources of natural construction aggregates in the United States as well as in the world. At the beginning of the 20th century, the production...

Large Stone Hot Mix Asphalt: State of the Art
Improved mix characteristics can be achieved by utilizing existing well-known technologies. Developments have included: more attention to voids in mineral aggregate criteria; adjusting...

Comparative Evaluation of 4-Inch and 6-Inch Diameter Specimens for Testing Large Stone Asphalt Mixes
Modified Marshall equipment and Gyratory Testing Machine (GTM) are now available for compacting and testing 6-inch diameter specimens to accommodate aggregate up to 2-inch maximum size....

Laboratory Aging of Asphalt-Aggregate Mixtures
Aging may result in hardening (stiffening) of the mixture which will result in a change in performance of the mixture. This may be beneficial since a stiffer mixture will have improved...

SHRP Program: Asphalt Durability and Specification
The goals of the Strategic Highway Research Program (SHRP) program are an improved specification for asphalt binders and accelerated performance tests that can be employed by user agencies...

Combined Compression-Shear Experiments on Mortar-Aggregate Interfaces
Material interfaces between matrix and aggregate particles in cementitious composites such as concrete are considered to be a very important component of the material microstructure, which...

Aggregates, Fibers and Coupling Agent in Polyester PC
This study investigated the influence of fine aggregate, glass fiber and silane coupling agent on the mechanical and mode I fracture behavior of a polyester polymer concrete (PC). The...

70 Year Performance Record for High Strength Structural Lightweight Concrete
The paper briefly discusses the first ship built using expanded aggregates manufactured in a rotary kiln the USS Selma. It then goes on to discuss achieving high strength concrete with...

Evaluation of High Strength Concrete by the Break-Off Method
The reliability of the Break-Off method to test inplace high-strength concrete is investigated. A total of 188 Break-Off tests and 30 standard cylinder tests are carried out for this project....

Issues of Rate Structure, Scaling, and Aggregation in Ecological Risk Analysis

Performance of Rubber-Modified Asphalt Pavements in Cold Regions

High Strength Concrete: Proportioning, Behavior and Applications
Generally, concrete with a cylinder compressive strength higher than 6000 psi (41.4 MPa) is designated as high strength concrete. High strengths are achieved using stronger coarse aggregates,...

 

 

 

 

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