| Autor: |
Rostami, Hossein, Brooks, Robert, Tovia, Fernando, Bahadory, Mozhgan |
| Zdroj: |
Journal of Solid Waste Technology & Management; Aug2009, Vol. 35 Issue 3, p127-134, 8p, 1 Color Photograph, 3 Charts, 6 Graphs |
| Abstrakt: |
A new lightweight material for construction applications that utilizes alkali activated fly ash along with a gassing agent and lightweight aggregates (e.g. vermiculite) has been developed. This Lightweight Alkali Ash Material (LW-AAM) does not require autoclaving, in contrast to the production of conventional Autoclave Cellular Concrete. LW-AAM can produce materials with densities ranging from 1200 kg/m3 to 2200 kg/m3 and compressive strength from 2 MPa to 65 MPa. These are highly resistant to corrosive action of sulfuric, nitric, hydrochloric and acetic acids which are known to readily deteriorate Portland cement concrete. LW-AAM is also a highly durable material. It resists the action of freezing and thawing. In addition to the development of new engineering material, utilization of AAMs for construction has the potential of recycling of a huge quantity of fly ash that otherwise would be landfilled. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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