Effects of re-vibration on mechanical properties and air-void characteristics of cement-stabilised macadam materials
Source abstract
Abstract
Layered continuous paving (LCP) technology is an effective choice for improving the integrity and construction efficiency of the thick cement-stabilised macadam (CSM) base course. However, the effects of re-vibration generated by construction equipment during the paving process are not well understood. In this investigation, the effects of re-vibration on mechanical properties and air-void characteristics were investigated by mechanical performance tests, chloride migration experiments and industrial computerised tomography tests. The results demonstrate that compared with the control group, the void characteristic parameters were reduced by applying re-vibration within 12 h, resulting in a more compact structure. Thus, the mechanical properties were improved. However, the improvement effect gradually weakened over the delay time. CSM interlayer bonding strength were related to the time point of applying re-vibration and the cement paste dosage sprinkled between the layers. It is suggested that12 h be used as the critical time point for the LCP.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovations in Concrete and Construction Materials · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Highway School, Chang’an University
Airport Construction Group North China Co., Ltd.
Key Laboratory of Road Structure & Material Ministry of Transport, Chang’an University
Funding
the Civil Aviation Airport Construction Group Project · the Key Science and Technology Project in the Transport Sector · the Fundamental Research Funds for the Central Universities, CHD
References (61)
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