contributor author | Tarun R. Naik | |
contributor author | Rudolph N. Kraus | |
contributor author | Yoon-moon Chun | |
contributor author | Francois D. Botha | |
date accessioned | 2017-05-08T21:17:55Z | |
date available | 2017-05-08T21:17:55Z | |
date copyright | December 2005 | |
date issued | 2005 | |
identifier other | %28asce%290899-1561%282005%2917%3A6%28659%29.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/46081 | |
description abstract | Cast-concrete hollow blocks, solid blocks, and paving stones were produced at a manufacturing plant by replacing up to 45% (by mass) of portland cement with fluidized bed combustion (FBC) coal ash and up to 9% of natural aggregates with wet-collected, low-lime, coarse coal-ash (WA). Cast-concrete product specimens of all three types exceeded the compressive strength requirements of ASTM from early ages, with the exception of one paving-stone mixture, which fell short of the requirement by less than 10%. The cast-concrete products made by replacing up to 40% of cement with FBC ash were equivalent in strength (89–113% of control) to the products without ash. The abrasion resistance of paving stones was equivalent for up to 34% FBC ash content. Partial replacement of aggregates with WA decreased strength of the products. The resistance of hollow blocks and paving stones to freezing and thawing decreased appreciably with increasing ash contents. The cast-concrete products could be used indoors in regions where freezing and thawing is a concern, and outdoors in a moderate climate. | |
publisher | American Society of Civil Engineers | |
title | Cast-Concrete Products Made with FBC Ash and Wet-Collected Coal-Ash | |
type | Journal Paper | |
journal volume | 17 | |
journal issue | 6 | |
journal title | Journal of Materials in Civil Engineering | |
identifier doi | 10.1061/(ASCE)0899-1561(2005)17:6(659) | |
tree | Journal of Materials in Civil Engineering:;2005:;Volume ( 017 ):;issue: 006 | |
contenttype | Fulltext | |