In this study, various percentage combinations of waste aggregates such as PET and crumb rubber w... more In this study, various percentage combinations of waste aggregates such as PET and crumb rubber were used to replace coarse and fine aggregates in natural rubber latex (NRL) modified concretes. Engineering properties such as compressive and flexural strengths, modulus of elasticity, and toughness obtained from compressive- and flexural stress-strain curves were investigated. Scanning electron microscopy (SEM) analysis was performed to examine the microstructural properties and to study the strength development of the studied concretes. The results indicated that both the compressive and flexural strengths of NRL-modified concretes with PET and crumb rubber aggregate replacements decreased with increasing replacement ratios. SEM analysis indicated that PET and crumb rubber (hydrophobic and non-polar materials) can affect the microstructure of the studied concrete by creating a weak interface between the aggregate and cement pastes, leading to reducing strength development. With the a...
Reclaimed asphalt pavement (RAP) contributes substantially to the volume of recycled waste in the... more Reclaimed asphalt pavement (RAP) contributes substantially to the volume of recycled waste in the world. This research aims to evaluate the mechanistic performance of asphalt concrete with 100% RAP (RAP-AC) modified with natural hemp fiber (HF) reinforcement. The effects of HF lengths and HF contents on the mechanistic performance were investigated. The static tests included Marshall stability, strength index (SI), and indirect tensile strength (ITS), whilst the cyclic tests included indirect tensile resilient modulus (IT Mr), indirect tensile fatigue life (ITFL), and rutting resistance tests. The microstructural analysis revealed that HF could absorb more asphalt cement and function as a reinforcement. The 0.05% HF with a 24 mm HF length was suggested as the best ingredient. For various stress levels, the higher resilience properties—due to the addition of HF—contribute to higher levels of ITFL and rutting resistance. Based on a critical analysis of the cyclic test data, the distre...
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Nava Nakorn Industrial is a home of world-class companies that serves many types of industries lo... more Nava Nakorn Industrial is a home of world-class companies that serves many types of industries located in Pathumthani Province, Thailand with an area of more than 10 km2. In 2011, the natural disaster, flooding up to about 4.7 m for 2 months caused the impacts in this industrial zone. The permanent flood wall protection was then built around the industrial area to ascertain the safety and to build the confidence for the investors. The evaluation of the safety and stability of the flood wall against the flooding problem is carried out in this research and divided into three main assessments, including site investigation and soil exploration, examination of the existing flood wall structures, and finite element analysis of its stability using Plaxis 2D. The site investigation and soil exploration, included boring, Atterberg limits, consolidation and triaxial tests to explore the basic and engineering parameters. The mechanical tests, including Schmidt Hammer test, Ferro scan test, Har...
Road networks are major infrastructures that support the economic development in both developed a... more Road networks are major infrastructures that support the economic development in both developed and developing countries. Bottom ash (BA) is a by-product from coal-fired powerplants, which is composed of a lipophilic molecule with effective reactivity to bituminous binder. BA was adopted in this research, as a green fine aggregate, to improve the mechanistic performance of asphalt concretes in this research. The effect of BA-replacement ratio (0%, 10%, 15%, 20% and 25%, by total weight of natural fine aggregate) on the Marshall stability and flow, indirect tensile strength (ITS), and mechanistic performance of BA-asphalt concrete, were examined. The mechanistic performance tests included the indirect-tensile condition (indirect tensile resilient modulus (IT Mr), indirect tensile fatigue life (ITFL)) and compressive condition (permanent deformation (PD), rut depth, and skid resistance). BA replacement improves the Marshall stability and flow, strength index, and ITS, up to the optimu...
AbstractThe integrated transdisciplinary concepts and technologies for greener and more sustainab... more AbstractThe integrated transdisciplinary concepts and technologies for greener and more sustainable innovations for recycling waste materials through geopolymer technique into construction material...
In this study, various percentage combinations of waste aggregates such as PET and crumb rubber w... more In this study, various percentage combinations of waste aggregates such as PET and crumb rubber were used to replace coarse and fine aggregates in natural rubber latex (NRL) modified concretes. Engineering properties such as compressive and flexural strengths, modulus of elasticity, and toughness obtained from compressive- and flexural stress-strain curves were investigated. Scanning electron microscopy (SEM) analysis was performed to examine the microstructural properties and to study the strength development of the studied concretes. The results indicated that both the compressive and flexural strengths of NRL-modified concretes with PET and crumb rubber aggregate replacements decreased with increasing replacement ratios. SEM analysis indicated that PET and crumb rubber (hydrophobic and non-polar materials) can affect the microstructure of the studied concrete by creating a weak interface between the aggregate and cement pastes, leading to reducing strength development. With the a...
Reclaimed asphalt pavement (RAP) contributes substantially to the volume of recycled waste in the... more Reclaimed asphalt pavement (RAP) contributes substantially to the volume of recycled waste in the world. This research aims to evaluate the mechanistic performance of asphalt concrete with 100% RAP (RAP-AC) modified with natural hemp fiber (HF) reinforcement. The effects of HF lengths and HF contents on the mechanistic performance were investigated. The static tests included Marshall stability, strength index (SI), and indirect tensile strength (ITS), whilst the cyclic tests included indirect tensile resilient modulus (IT Mr), indirect tensile fatigue life (ITFL), and rutting resistance tests. The microstructural analysis revealed that HF could absorb more asphalt cement and function as a reinforcement. The 0.05% HF with a 24 mm HF length was suggested as the best ingredient. For various stress levels, the higher resilience properties—due to the addition of HF—contribute to higher levels of ITFL and rutting resistance. Based on a critical analysis of the cyclic test data, the distre...
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
Nava Nakorn Industrial is a home of world-class companies that serves many types of industries lo... more Nava Nakorn Industrial is a home of world-class companies that serves many types of industries located in Pathumthani Province, Thailand with an area of more than 10 km2. In 2011, the natural disaster, flooding up to about 4.7 m for 2 months caused the impacts in this industrial zone. The permanent flood wall protection was then built around the industrial area to ascertain the safety and to build the confidence for the investors. The evaluation of the safety and stability of the flood wall against the flooding problem is carried out in this research and divided into three main assessments, including site investigation and soil exploration, examination of the existing flood wall structures, and finite element analysis of its stability using Plaxis 2D. The site investigation and soil exploration, included boring, Atterberg limits, consolidation and triaxial tests to explore the basic and engineering parameters. The mechanical tests, including Schmidt Hammer test, Ferro scan test, Har...
Road networks are major infrastructures that support the economic development in both developed a... more Road networks are major infrastructures that support the economic development in both developed and developing countries. Bottom ash (BA) is a by-product from coal-fired powerplants, which is composed of a lipophilic molecule with effective reactivity to bituminous binder. BA was adopted in this research, as a green fine aggregate, to improve the mechanistic performance of asphalt concretes in this research. The effect of BA-replacement ratio (0%, 10%, 15%, 20% and 25%, by total weight of natural fine aggregate) on the Marshall stability and flow, indirect tensile strength (ITS), and mechanistic performance of BA-asphalt concrete, were examined. The mechanistic performance tests included the indirect-tensile condition (indirect tensile resilient modulus (IT Mr), indirect tensile fatigue life (ITFL)) and compressive condition (permanent deformation (PD), rut depth, and skid resistance). BA replacement improves the Marshall stability and flow, strength index, and ITS, up to the optimu...
AbstractThe integrated transdisciplinary concepts and technologies for greener and more sustainab... more AbstractThe integrated transdisciplinary concepts and technologies for greener and more sustainable innovations for recycling waste materials through geopolymer technique into construction material...
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