A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Performance assessments of open-graded cement stabilized macadam containing recycled aggregate
https://orcid.org/0000-0003-0410-5769
https://orcid.org/0000-0002-6576-8200
https://orcid.org/0000-0001-9625-4520
Highlights Feasibility of using OGCSM containing recycled aggregate as a base material was explored. Factorial analysis was conducted to analyze the significance of influence factors of UCS and ITS. Recycled aggregate adversely affected the strength performance, water loss rate, and dry shrinkage strain. Used total porosity and valid porosity to assess the permeability and the permeability coefficients exceeded 2500ml/min.
Abstract Increased awareness of sustainability has called for increasing use of construction waste in civil infrastructures. However, the incorporation of construction waste should be well examined without compromising the performance. There are few studies focusing on applying construction waste in pervious concrete. This study was aimed at exploring the feasibility of reusing recycled aggregate from construction waste for open-graded cement stabilized macadam (OGCSM) and evaluating its performance. Various replacement ratios of recycled aggregate ranging from 0% to 100% were designed and studied in the OGCSM. The performance of OGCSM containing recycled aggregate are comprehensively evaluated. Specifically unconfined compressive strength (UCS) test, indirect tensile strength (ITS) test, compression resilience modulus test, dry shrinkage test, frost resistance test, and permeability test were conducted. As the results showed, the UCS, ITS and compression resilience modulus of OGCSM decreased with the increase of replacement ratios of recycled aggregate. Dry shrinkage performance also declined with the increase of recycled aggregate content while permeability performance increased with the increase of recycled aggregate content. The UCS after freeze-thaw cycles declined with the increase of recycled aggregate content and cycles. However, there was no significant correlation between residue strength rate and recycled aggregate content. When the replacement ratio was 30%, the residue strength rate was maximum. Although the performance of OGCSM declined with the increase of recycled aggregate content, it could be potentially used in the base of the highway when the performance of OGCSM containing appropriate amount of recycled aggregate met the requirement of base layer of pavements.
Performance assessments of open-graded cement stabilized macadam containing recycled aggregate
https://orcid.org/0000-0003-0410-5769
https://orcid.org/0000-0002-6576-8200
https://orcid.org/0000-0001-9625-4520
Highlights Feasibility of using OGCSM containing recycled aggregate as a base material was explored. Factorial analysis was conducted to analyze the significance of influence factors of UCS and ITS. Recycled aggregate adversely affected the strength performance, water loss rate, and dry shrinkage strain. Used total porosity and valid porosity to assess the permeability and the permeability coefficients exceeded 2500ml/min.
Abstract Increased awareness of sustainability has called for increasing use of construction waste in civil infrastructures. However, the incorporation of construction waste should be well examined without compromising the performance. There are few studies focusing on applying construction waste in pervious concrete. This study was aimed at exploring the feasibility of reusing recycled aggregate from construction waste for open-graded cement stabilized macadam (OGCSM) and evaluating its performance. Various replacement ratios of recycled aggregate ranging from 0% to 100% were designed and studied in the OGCSM. The performance of OGCSM containing recycled aggregate are comprehensively evaluated. Specifically unconfined compressive strength (UCS) test, indirect tensile strength (ITS) test, compression resilience modulus test, dry shrinkage test, frost resistance test, and permeability test were conducted. As the results showed, the UCS, ITS and compression resilience modulus of OGCSM decreased with the increase of replacement ratios of recycled aggregate. Dry shrinkage performance also declined with the increase of recycled aggregate content while permeability performance increased with the increase of recycled aggregate content. The UCS after freeze-thaw cycles declined with the increase of recycled aggregate content and cycles. However, there was no significant correlation between residue strength rate and recycled aggregate content. When the replacement ratio was 30%, the residue strength rate was maximum. Although the performance of OGCSM declined with the increase of recycled aggregate content, it could be potentially used in the base of the highway when the performance of OGCSM containing appropriate amount of recycled aggregate met the requirement of base layer of pavements.
Performance assessments of open-graded cement stabilized macadam containing recycled aggregate
https://orcid.org/0000-0003-0410-5769
https://orcid.org/0000-0002-6576-8200
https://orcid.org/0000-0001-9625-4520
Highlights Feasibility of using OGCSM containing recycled aggregate as a base material was explored. Factorial analysis was conducted to analyze the significance of influence factors of UCS and ITS. Recycled aggregate adversely affected the strength performance, water loss rate, and dry shrinkage strain. Used total porosity and valid porosity to assess the permeability and the permeability coefficients exceeded 2500ml/min.
Abstract Increased awareness of sustainability has called for increasing use of construction waste in civil infrastructures. However, the incorporation of construction waste should be well examined without compromising the performance. There are few studies focusing on applying construction waste in pervious concrete. This study was aimed at exploring the feasibility of reusing recycled aggregate from construction waste for open-graded cement stabilized macadam (OGCSM) and evaluating its performance. Various replacement ratios of recycled aggregate ranging from 0% to 100% were designed and studied in the OGCSM. The performance of OGCSM containing recycled aggregate are comprehensively evaluated. Specifically unconfined compressive strength (UCS) test, indirect tensile strength (ITS) test, compression resilience modulus test, dry shrinkage test, frost resistance test, and permeability test were conducted. As the results showed, the UCS, ITS and compression resilience modulus of OGCSM decreased with the increase of replacement ratios of recycled aggregate. Dry shrinkage performance also declined with the increase of recycled aggregate content while permeability performance increased with the increase of recycled aggregate content. The UCS after freeze-thaw cycles declined with the increase of recycled aggregate content and cycles. However, there was no significant correlation between residue strength rate and recycled aggregate content. When the replacement ratio was 30%, the residue strength rate was maximum. Although the performance of OGCSM declined with the increase of recycled aggregate content, it could be potentially used in the base of the highway when the performance of OGCSM containing appropriate amount of recycled aggregate met the requirement of base layer of pavements.
Performance assessments of open-graded cement stabilized macadam containing recycled aggregate
Yan, Kezhen (author) / Li, Guokai (author) / You, Lingyun (author) / Zhou, Yubo (author) / Wu, Shenghua (author)
2019-10-18
Article (Journal)
Electronic Resource
English
Experimental Study of Recycled Concrete Aggregate for Cement-Stabilized Macadam
| British Library Conference Proceedings | 2011
Process for preparing cement stabilized macadam based on recycled aggregate
| European Patent Office | 2022
| European Patent Office | 2024
Characteristics of cement-stabilized macadam containing surface-treated recycled aggregates
| Taylor & Francis Verlag | 2021
Cement stabilized macadam regenerated aggregate processing method
| European Patent Office | 2022