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RECYCLING OF DAM SEDIMENT AND GRANULATED SLAG WASTES FOR THE PRODUCTION OF GEOPOLYMERS MATERIALS
Oral Presentation , Page 308-320 (13)
Full Text (1.11 MB)
Volume Title: 3rd International Conference on Civil Engineering: Development & Sustainability
Authors
1Department of Civil Engineering, Research Unit: Materials, Process and Environment, University M’Hamed Bougara of Boumerdes. Algeria
2Department of Civil Engineering, Research Unit: Materials, Process and Environment, University M’Hamed Bougara of Boumerdes. Algeria
3Department of Process Engineering, Research Unit: Materials, Process and Environment, University M’Hamed Bougara of Boumerdes. Algeria
Abstract
The objective of this experimental work is the design of geopolymer materials, used in the field of civil engineering and presenting similar performance to Portland cement.
This work concern the optimization of the geopolymer formulation based on granulated slag (GS) and recycled calcined sediment (RCS) as source materials rich in aluminosilicate. For that different mixtures of geopolymer (100% RCS, 100% GS and 50% /50% RCS and GS) were prepared.
Several characterization tests have been carried out in order to evaluate the physical and mechanical performance of designed geopolymers such as spreading, setting times, normal consistency, shrinkage and compressive strength. The obtained results show that slag paste is considered as fluid paste because of the spread value which is equal to 13cm. The setting time increases with increasing slag percentage in all mixture. The lowest linear shrinkage value is obtained for specimens based on the mixture containing 50% /50% RCS and GS. Good compressive strength of 39.5 MPa and 22.3 MPa were obtained for mixtures based on granulated slag and sediment/slag respectively.
This work concern the optimization of the geopolymer formulation based on granulated slag (GS) and recycled calcined sediment (RCS) as source materials rich in aluminosilicate. For that different mixtures of geopolymer (100% RCS, 100% GS and 50% /50% RCS and GS) were prepared.
Several characterization tests have been carried out in order to evaluate the physical and mechanical performance of designed geopolymers such as spreading, setting times, normal consistency, shrinkage and compressive strength. The obtained results show that slag paste is considered as fluid paste because of the spread value which is equal to 13cm. The setting time increases with increasing slag percentage in all mixture. The lowest linear shrinkage value is obtained for specimens based on the mixture containing 50% /50% RCS and GS. Good compressive strength of 39.5 MPa and 22.3 MPa were obtained for mixtures based on granulated slag and sediment/slag respectively.
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