The American Society for Testing and Materials (ASTM) is an independent organization devoted to the development of standards.

American Society for Testing and Materials

Production of bricks from waste materials – A review

https://asopa.typepad.com/files/geopolymerization.pdf

Production of eco-friendly bricks from copper mine tailings through geopolymerization

Fiber-reinforced asphalt-concrete – A review

Morphology, rheology, and physical properties of polymer-modified asphalt binders

Re-usage of waste foundry sand in high-strength concrete.

Use of petroleum-contaminated drilling wastes as sub-base material for road construction:

In this study, compressive strength, modulus of elasticity and steel tensile coupon tests are performed to determine material properties. Sixteen hollow cold formed steel tubes and 48 concrete filled steel tube specimens are used for axial compression tests. The effects of width/thickness ratio (b/t), the compressive strength of concrete and geometrical shape of cross section parameters on ultimate loads, axial stress, ductility and buckling behavior are investigated. Circular, hexagonal, rectangular and square sections, 18.75, 30.00, 50.00, 100.00 b/t ratio values and 13, 26, 35 MPa concrete compressive strength values are chosen for the experimental procedure. Analytical models of specimens are developed using a finite element program (ABAQUS) and the results are compared. Circular specimens are the most effective samples according to both axial stress and ductility values. The concrete in tubes has experienced considerable amount of deformations which is not expected from such a brittle material in certain cases. The results provide an innovative perspective on using cold formed steel and concrete together as a composite material.

Structural behavior of concrete filled steel tubular sections (CFT/CFSt) under axial compression

In recent years, research has been devoted to the control of permanent deformations in flexible pavements. In order to prevent rutting, fatigue, and low-temperature cracking, different types of polymer modifiers have been utilized. The use of polypropylene (PP) fibers as a modifier in pavement mix that can be found locally and at low cost compared to other modifiers is an attractive option. This paper reports on the Marshall design and the optimum bitumen content for asphalt concrete with the addition of polypropylene fibers. Different types of PP fibers were used in order to determine the optimum bitumen content and the optimal PP fiber dosage. Marshall specimens were tested using the universal testing machine to determine the creep behavior of dense bituminous mixtures under repeated loading. The results from the analysis of the tested specimens show that the addition of polypropylene fibers improves the behavior of the specimens by increasing the life of samples under repeated creep testing.

Ahmet Tuncan

Papers

Re-usage of waste foundry sand in high-strength concrete.

Use of petroleum-contaminated drilling wastes as sub-base material for road construction:

Structural behavior of concrete filled steel tubular sections (CFT/CFSt) under axial compression

Repeated Creep Behavior of Polypropylene Fiber-Reinforced Bituminous Mixtures

The use of waste materials in asphalt concrete mixtures.