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A platform for research: civil engineering, architecture and urbanism
Ecological Cementitious Material Based on Combination Between Natural Pozzolan and Polymer Admixture
The goal of this study is to improve the chemical–physical and mechanical properties of a new ecological cementitious material in fresh and hardened state. It is formulated by combination of natural pozzolan, clinker, and polycarboxylate. The clinker is partially substituted by different percentages of natural pozzolan ranging from 5% to 40% by weight of cement with a step of 5%. The polymeric admixture of polycarboxylate “superplasticizers” is 3.5% by weight of cement.
The effect of those interactions on chemical–physical and mechanical properties such as loss on ignition, free lime, insoluble residues, density, fineness by Blaine surface area, water demand, initial and final setting time, expansion, porosity, capillary absorption, and compressive strength has been studied.
The obtained results show that partially substituting of clinker by the natural pozzolan in presence of admixture of polycarboxylate decreased the density, fineness, water demand, setting time, expansion, porosity, and capillary absorption. The compressive strength at a young age (2 days), a median age (7 days), and a long-time (28 days) has been improved.
These results show that we have succeeded to produce an ecological and durable cementitious material.
Ecological Cementitious Material Based on Combination Between Natural Pozzolan and Polymer Admixture
The goal of this study is to improve the chemical–physical and mechanical properties of a new ecological cementitious material in fresh and hardened state. It is formulated by combination of natural pozzolan, clinker, and polycarboxylate. The clinker is partially substituted by different percentages of natural pozzolan ranging from 5% to 40% by weight of cement with a step of 5%. The polymeric admixture of polycarboxylate “superplasticizers” is 3.5% by weight of cement.
The effect of those interactions on chemical–physical and mechanical properties such as loss on ignition, free lime, insoluble residues, density, fineness by Blaine surface area, water demand, initial and final setting time, expansion, porosity, capillary absorption, and compressive strength has been studied.
The obtained results show that partially substituting of clinker by the natural pozzolan in presence of admixture of polycarboxylate decreased the density, fineness, water demand, setting time, expansion, porosity, and capillary absorption. The compressive strength at a young age (2 days), a median age (7 days), and a long-time (28 days) has been improved.
These results show that we have succeeded to produce an ecological and durable cementitious material.
Ecological Cementitious Material Based on Combination Between Natural Pozzolan and Polymer Admixture
Bumajdad, Ali (editor) / Bouhamra, Walid (editor) / Alsayegh, Osamah A. (editor) / Kamal, Hasan A. (editor) / Alhajraf, Salem Falah (editor) / Khudhair, Mohammed Hussein (author) / Alhousali, Abdulsamad Mohammed (author) / El Hilal, Bouchra (author) / Hsissou, Rachid (author) / Berradi, Mohamed (author)
Gulf Conference on Sustainable Built Environment ; Chapter: 6 ; 93-107
2020-04-08
15 pages
Article/Chapter (Book)
Electronic Resource
English
New ecological cementitious material , Natural pozzolan , Polycarboxylate , Mechanical properties , Compressive strength Energy , Sustainable Architecture/Green Buildings , Building Construction and Design , Sustainable Development , Structural Materials , Building Materials , Landscape/Regional and Urban Planning
Evaluation of natural pozzolan for use as supplementary cementitious material
| Taylor & Francis Verlag | 2012
New research results on pozzolan as binder and admixture
| Engineering Index Backfile | 1953