A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Biodegradable polymers on cementitious materials
PTDC/EPH-PAT/4684/2014 IF/01054/2014/CP1224/CT0005 UID/QUI/50006/2019 UID/Multi/04378/2019 POCI-01-0145-FEDER-007728 ; Nowadays the sustainability and safety requirements of structures inspire the study of new self healing materials and preventive repair methods on cementitious elements. To achieve this undertaking, this research replaces widely employed synthetic polymers by biodegradable ones as consolidants and water-repellents, and assesses the protection and consolidation effect of biopolymers (obtained by using waste biomass of mixed microbial cultures from polyhydroxyalkanoates production processes) as eco-friendly healing agents by analysing the water absorption of two kind of materials. The first group of samples are cement mortar specimens whose external surface has been treated with biopolymer products and subsequently evaluated by water drop absorption test. The second group of samples are cement mortar specimens formulated with biopolymer products included in its mixing water and later the waterproofing efficiency is analysed by capillary water absorption tests. The water absorption behaviour of both kind of samples shows a potential improvement of cementitious elements durability, since water absorption results have decreased for treated samples in comparison with untreated ones. ; authorsversion ; published
Biodegradable polymers on cementitious materials
PTDC/EPH-PAT/4684/2014 IF/01054/2014/CP1224/CT0005 UID/QUI/50006/2019 UID/Multi/04378/2019 POCI-01-0145-FEDER-007728 ; Nowadays the sustainability and safety requirements of structures inspire the study of new self healing materials and preventive repair methods on cementitious elements. To achieve this undertaking, this research replaces widely employed synthetic polymers by biodegradable ones as consolidants and water-repellents, and assesses the protection and consolidation effect of biopolymers (obtained by using waste biomass of mixed microbial cultures from polyhydroxyalkanoates production processes) as eco-friendly healing agents by analysing the water absorption of two kind of materials. The first group of samples are cement mortar specimens whose external surface has been treated with biopolymer products and subsequently evaluated by water drop absorption test. The second group of samples are cement mortar specimens formulated with biopolymer products included in its mixing water and later the waterproofing efficiency is analysed by capillary water absorption tests. The water absorption behaviour of both kind of samples shows a potential improvement of cementitious elements durability, since water absorption results have decreased for treated samples in comparison with untreated ones. ; authorsversion ; published
Biodegradable polymers on cementitious materials
Garcia-Gonzalez, Julia (author) / Lemos, Paulo C. (author) / Pereira, Maria Alice Santos (author) / Moran-del Pozo, Julia (author) / Guerra-Romero, Manuel Ignacio (author) / Juan-Valdés, Andrés (author) / Faria, Paulina (author) / LAQV@REQUIMTE / DQ - Departamento de Química / UCIBIO - Applied Molecular Biosciences Unit
2020-01-01
Conference paper
Electronic Resource
English
Polymers in cementitious materials
| TIBKAT | 2005
| Taylor & Francis Verlag | 2023
British Library Online Contents | 2011