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Title:

Evaluating Mechanical Properties and Fatigue in Two-Layer Roller-Compacted Concrete Pavements

Accession Number:

01658425

Record Type:

Component

Abstract:

Roller compacted concrete (RCC) is a mass concrete with zero slump consisting of well-graded aggregate, cement and water. RCC has many advantages over other pavement types, particularly cost and speed of construction. Recently, RCC has undergo many developments mostly directed towards improving quality, including smoothness and durability. RCC now has the potential to combine the performance of concrete with the low cost of asphalt installation. In order to expand the application of RCC for pavements and increase the skid resistance to use it in normal roads and highways, a two-layer system of RCC with different aggregate types and size was utilized in this research and produced by a laboratory roller compactor that can simulate the real situation in the field. This paper evaluates the strength and stiffness and fatigue resistance of two layer RCC for pavements. It can be seen from the results of mechanical properties of RCC that the materials have good strength and fatigue properties for each layer separately and also together in a two-layer system. Furthermore, the fatigue damage for each layer and two layers can show good fatigue performance, with the two-layer RCC potentially withstanding almost unlimited load repetition. However, this successful fatigue response depends heavily on the quality of the interlayer bond. In conclusion, the mechanical properties and fatigue of two-layer RCC for pavement can show an acceptable strength and significant resistance to fatigue if constructed appropriately, but this is at risk if the construction process is delays the placing of the upper layer by more than a few hours.

Supplemental Notes:

This paper was sponsored by TRB committee AFD50 Standing Committee on Design and Rehabilitation of Concrete Pavements. Alternate title: Evaluating Mechanical Properties and Fatigue in Two Layer Roller Compacted Concrete Pavements.

Report/Paper Numbers:

18-01463

Language:

English

Authors:

Mohammed, Haneen Adil
Thom, Nicholas Howard
Dawson, Andrew Robert

Pagination:

12p

Publication Date:

2018

Conference:

Transportation Research Board 97th Annual Meeting

Location: Washington DC, United States
Date: 2018-1-7 to 2018-1-11
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Subject Areas:

Construction; Highways; Pavements

Source Data:

Transportation Research Board Annual Meeting 2018 Paper #18-01463

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2018 10:22AM