ORCID Profile
0000-0003-0920-3405
Current Organisations
University of Western Australia
,
Islamic University of Technology
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Ubiquity Press, Ltd.
Date: 2020
DOI: 10.5334/OQ.81
Publisher: Elsevier BV
Date: 03-2017
Publisher: Informa UK Limited
Date: 02-09-2021
Publisher: Public Library of Science (PLoS)
Date: 07-2020
Publisher: MDPI AG
Date: 29-09-2023
Publisher: Elsevier BV
Date: 05-2023
Publisher: Informa UK Limited
Date: 30-08-2021
Publisher: Hindawi Limited
Date: 2017
DOI: 10.1155/2017/9187627
Abstract: Effects of different chemical admixtures on fresh and hardened properties of prolonged mixed concrete and their cost-effectiveness were investigated. Influence of sand to aggregate volume ratio, cement content, and use of chilled mixing water on the properties of prolonged mixed concrete was studied as well. Different concrete mixtures were prepared using five different types of chemical admixture (one water reducer based on lignosulfonate and four superplasticizers based on sulfonated naphthalene polymer, polycarboxylic ether, second-generation polycarboxylic ether polymer, and organic polymer), varying s/a ratio (0.40 and 0.45) and cement content (340 kg/m 3 and 380 kg/m 3 ) and using chilled mixing water. Slump tests were performed at 15-minute intervals to assess the fresh performance of each prolonged mixed concrete mixture. 100 mm by 200 mm cylindrical concrete specimens were prepared and tested for compressive strength, Young’s modulus, splitting tensile strength, and ultrasonic pulse velocity. Results indicate that concretes with sulfonated naphthalene polymer-based superplasticizer and second-generation polycarboxylic ether-based superplasticizer show best performances in both fresh and hardened states. Concrete with lignosulfonate-based water reducer exhibits poor performance in comparison with the concretes with superplasticizers. The cost per unit compressive strength of concrete with sulfonated naphthalene polymer-based superplasticizer is lower compared with the concretes with other types of chemical admixture.
Publisher: Public Library of Science (PLoS)
Date: 15-06-2023
Location: Bangladesh
Location: Bangladesh
No related grants have been discovered for Patrick Morrison.