Loading capacity strengthening to cement-stabilised crushed gravel using reinforced wire mesh

Abstract

Sanjeev Adhikari (2014) Loading capacity strengthening to cement-stabilised crushed gravel using reinforced wire mesh, Road Materials and Pavement Design, 15:3, 733-745, Settlement and non-uniform deformation of frozen soil subgrade introduce fatal cracks on semirigid base asphalt pavements. This research aims to use reinforced wire mesh to reduce serious cracks on semi-rigid asphalt pavements in frozen regions. Three impact factors, diameter and interval as well as two types of wire mesh have been analysed by loading tests. Results have shown that after setting the reinforced wire mesh: (a) failure load and displacement of the cement-stabilised crushed gravel samples have been improved; (b) diameter and interval of the wire mesh have interactive impacts on reinforced sample load capacity; (c) the reinforced wire mesh can limit cracks by redistributing stress in the specimen; and (d) the multiple linear regression model well reflects the variation of loading properties; the results make sense from the statistics view as well. Results also represent that the strengthened wire mesh can help spread out the applied load, and increase the overall loading capacity of cement-stabilised crushed gravel. The results provided a reference for semi-rigid base asphalt pavement cracks caused by non-uniform deformation on frozen soil subgrade as well as guidelines for construction and maintenance in frozen regions.

Influence of Emulsified Asphalt on the Mechanical Property and Microstructure of Cement-Stabilized Gravel under Freezing and Thawing Cycle Conditions

“…The cement-stabilized gravel (CSG) is being used widely as a typical semi-rigid base material [ 1 , 2 , 3 , 4 ]. On account of its aggregate gradation and hydration of the cementing material, CSG contains a considerable number of pores in its structure [ 5 , 6 ]. A certain number of cracks will develop in a CSG base once it is laid, forming open channels [ 7 ].…”

Effects of Cement Content, Curing Period, Gradation, and Compaction Degree on Mechanical Behavior of Cement‐Stabilized Crushed Gravel Produced via Vertical Vibration Test Method

“…Based on this, numerous researchers have conducted related research on the road performance of cement-stabilized materials [16]. Ma et al found that the crushed gravel processed in accordance with the required specifications can effectively reduce the crushing phenomenon during construction and has a rough and irregular fracture surface, which can effectively improve its adhesion to the cement slurry [17]. Lin et al [18] and Wang et al [19] used 6.5% overdose cement and 2% antishrinking agent and a vibration compaction method to form a cement-stabilized crushed gravel (CSCG) mixture to improve the durability of the CSCG base.…”

“…Sun et al studied the strength, modulus, frost resistance, water stability, and other technical properties of cement-stabilized iron ore tailings gravel in highway applications [23]. Ma et al used reinforced mesh to enhance the carrying capacity of CSCG [17]. Han et al conducted experimental research on the gradation and road performance of cement and fly ash-stabilized macadam based on the theory of mixture gradation [24].…”