Journal of Sustainable Construction Materials and Project Management

The Journal of Sustainable Construction Materials and Project Management (JSCMPM) covers topics not limited to recycled aggregates and dust for massive and systematic construction needs and requirements, managing construction wastage, discovery from earthen materials through calcination as a partial replacement for cement, lime, or other similar admixtures, any wastage materials possible to have experimented would be systematically analyzing, evaluating and modeling this information for use in the construction industry. It also includes ... show more

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Evaluation of conventional behavior of bitumen containing PET plastic and HMA pavement response utilizing 3D-Move analysis software
N. Tessera, E. Quezon

JSC Matls. Proj. Mangt. (2025). 1

Abstract
A well-developed road network provides good services for road consumers. Most roads in the world are flexible types of pavement. Bitumen has viscous-elastic properties and is very sensitive to temperature; it plays a vital role in producing hot mix asphalt and influences the performance of HMA pavement. Flexible pavements are linked to extreme temperatures, causing rutting and fatigue cracking. Pavement distress shortens service life and increases maintenance costs. This research focused on improving pavement resistance to distress by modifying the conventional properties of bitumen using alternative materials such as shredded PET plastic. In this study, two stages were applied. The first stage was collecting samples, and the second stage determined the conventional properties of bitumen by adding 3%, 6%, and 9% of shredded PET plastic to the bitumen. Penetration, ductility, and softening point tests were performed to analyze the conventional behavior of bitumen. Finally, top-down and bottom-up cracks are utilized to evaluate rutting damage, utilizing 3D-Move analysis software that considers moving vehicles under various loads and speeds. From the conventional bitumen test, at 3% PET plastic added to the bitumen has no significant effect on the penetration grade, Ductility, and softening point. However, when 6% and 9% PET by weight of bitumen mixed, the penetration grade, ductility, and softening result become 49.3mm, 45.5mm, 97mm, 85mm, and 57mm and 62oC, respectively compared with the penetration grade, ductility, and softening point value of unmodified bitumen (66.5mm, 142cm, and 48.9oC). Besides, the 3D-Move Analysis software results show that asphalt binders with higher PET plastic content best resist the rutting damage, top-down and bottom cracks.
Abstract
A well-developed road network provides good services for road consumers. Most roads in the world are flexible types of pavement. Bitumen has viscous-elastic properties and [...]
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Effect and Suitability of Calcined Montmorillonite Clay Powder and Waste Khat Husk Ash in the Strength and Durability of C-25 Concrete and its Benefits Cost Analysis
G. Wakoya, E. Quezon, W. Ararsa, J. Chimdi, D. LEMU

JSC Matls. Proj. Mangt. (2021). 1

Abstract
Some pressing environmental issues are industrial waste and cement production, which cause high gas emissions. Cement is vital in the global construction industry. The research goal was to find a cheaper material locally. Using OPC, calcined Montmorillonite clay powder (CMMT) and waste Khat Husk Ash (KHA) were tested as a partial replacement. Water entering the interlayer molecular spaces and adsorption, a material in expansive soil, causes Montmorillonite clay to expand more than other clays. Most of Ambo's land is expansive soil, from which samples were taken to determine Montmorillonite clay content. The average temperature required to calcine MMT clay was performed at 8000C using a muffle furnace, ground to a fineness of 150μm, and its chemical composition was investigated. Similarly, the waste KH was heated at a temperature of 6000C. The proportions by weight are applied for the OPC, Calcined MMT clay powder, and Waste Khat Hush Ash as follows: Proportion-A (100%: 0%: 0%); P-B (85%:10%:5%); P-C (75%:20%:5%); P-D (65%:30%:5%); P-E (55%:40%:5%), and P-F (45%:50%:5%). The production of concrete for the C-25 Grade mix design was performed based on the ASTM manual, ERA manual, and the ACI code to evaluate the strengths and durability of concrete. These materials were calcined and tested for strength and durability using ASTM C 618-5 to determine the chemical compounds at various temperatures. The experiments used aggregates up to 25mm in size. The results showed that when OPC was partially replaced with Calcined MMT clay powder and KHA, the consistency and setting time remained within the ASTM C-191 Standard Specifications. Moreover, the compressive, flexural, and split tensile strengths gradually decreased from the control specimen as the replacement was increased. The optimal amount of calcined MMT clay powder and Waste KHA indicated up to 15% by weight to replace the OPC content in normal concrete mix production. The benefit-cost analysis revealed that using OPC with calcined MMT clay powder and KHA is more cost-effective than using OPC alone.
Abstract
Some pressing environmental issues are industrial waste and cement production, which cause high gas emissions. Cement is vital in the global construction industry. The research [...]
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Quezon, Emer T. 12373
Marmolejo, Mario 534

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Evaluation of conventional behavior of bitumen containing PET plastic and HMA pavement response utilizing 3D-Move analysis software

Effect and Suitability of Calcined Montmorillonite Clay Powder and Waste Khat Husk Ash in the Strength and Durability of C-25 Concrete and its Benefits Cost Analysis

editors

Quezon, Emer T. 12373

Marmolejo, Mario 534

Editorial board

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