A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation and performance of pervious concrete with wood tar-formaldehyde-modified epoxy resins
Highlights Wood tar and formaldehyde were used to modify epoxy resin via Mannich reaction. Modified pervious concrete had 21.9% improved compressive strength. Abrasion resistance of concrete was 52.5% improved with similar aging performance. The enhancing mechanism was revealed by FTIR, DSC, and NMR analyses.
Abstract Pervious concrete made from epoxy resin suffers from high cost and is prone to cracking due to its inherent brittleness and aging. In this study, wood tar and formaldehyde, both easily available and low in cost, were used to modify epoxy resins via Mannich reaction. The resultant water from the reaction could facilitate cement hydration to form better adhesion with coarse aggregates as framework. Pervious concrete with modified epoxy resins demonstrated 21.9% improved compressive strength and 52.5% increased abrasion resistance, with comparable aging and frost resistance performance. The enhancing mechanism of modified epoxy resin was investigated by FTIR spectroscopy, DSC, and NMR analyses.
Preparation and performance of pervious concrete with wood tar-formaldehyde-modified epoxy resins
Highlights Wood tar and formaldehyde were used to modify epoxy resin via Mannich reaction. Modified pervious concrete had 21.9% improved compressive strength. Abrasion resistance of concrete was 52.5% improved with similar aging performance. The enhancing mechanism was revealed by FTIR, DSC, and NMR analyses.
Abstract Pervious concrete made from epoxy resin suffers from high cost and is prone to cracking due to its inherent brittleness and aging. In this study, wood tar and formaldehyde, both easily available and low in cost, were used to modify epoxy resins via Mannich reaction. The resultant water from the reaction could facilitate cement hydration to form better adhesion with coarse aggregates as framework. Pervious concrete with modified epoxy resins demonstrated 21.9% improved compressive strength and 52.5% increased abrasion resistance, with comparable aging and frost resistance performance. The enhancing mechanism of modified epoxy resin was investigated by FTIR spectroscopy, DSC, and NMR analyses.
Preparation and performance of pervious concrete with wood tar-formaldehyde-modified epoxy resins
Yu, Demei (author) / Fan, Yongtong (author) / Feng, Chao (author) / Wu, Yuchao (author) / Liu, Wendi (author) / Fu, Tengfei (author) / Qiu, Renhui (author)
2022-08-13
Article (Journal)
Electronic Resource
English
Epoxy resin modified pervious concrete and preparation method thereof
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