Introduction and Application of Rotational Abrasion Device to Determine Concrete Pavement Abrasion

The Abrasion Testing of Concrete Pavers

This paper describes an in-depth evaluation of an abrasion testing procedure for concrete pavers developed in Australia The test involves abrasion of the paver surface by a rapidly rotating ball race under load. Water is used both to lubricate the race and to remove debris. The investigation included the study of factors affecting the test results such as the load applied to the ball-race, the ...

Solution of the Roth-Marques-Durian rotational abrasion model.

We solve the rotational abrasion model of Roth, Marques, and Durian [Phys. Rev. E 83, 031303 (2011)], a one-dimensional quasilinear partial differential equation resembling the inviscid Burgers equation with the unusual feature of a step function factor as a coefficient. The complexity of the solution is primarily in keeping track of the cases in the piecewise function that results from certain...

Standard Test Methods for Determination of Abrasion Resistance of Concrete

There are different test methods to determine the abrasion resistance of concrete subjected to number of various types of abrasion. There are number of different tests used in various countries and it is clear that there is no single test that adequately measures the abrasion resistance of concrete under all conditions. This paper covers the summary and classification of the various abrasion te...

abrasion protocols

Corneal abrasion

CLINICAL QUESTION What is the best treatment for traumatic corneal abrasion? RESULTS Eye patching does not reduce pain in patients with corneal abrasions. Topical diclofenac does reduce pain in patients with corneal abrasions IMPLEMENTATION Pitfalls to avoid when treating abrasions: Treatment of small abrasions Treatment of larger abrasions When to refer for specialist treatment.

Mechanical Abrasion and Intercrown Spacing

The crowns of neighboring trees of similar height do not interdigitate but rather are generally separated by spaces called "crown shyness" gaps. In a black mangrove (Avicennia germinans) forest in Costa Rica, the width of crown shyness gaps was positively correlated with the distance pairs of trees or branches adjacent to the gap swayed in the wind (n = 22; p< .01). Abrasion of buds, leaves and...