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Title: Sulfate and acid resistant concrete and mortar

Abstract

The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction and other applications, which hardenable mixtures demonstrate significant levels of acid and sulfate resistance while maintaining acceptable compressive strength properties. The acid and sulfate hardenable mixtures of the invention containing fly ash comprise cementitious materials and a fine aggregate. The cementitous materials may comprise fly ash as well as cement. The fine aggregate may comprise fly ash as well as sand. The total amount of fly ash in the hardenable mixture ranges from about 60% to about 120% of the total amount of cement, by weight, whether the fly ash is included as a cementious material, fine aggregate, or an additive, or any combination of the foregoing. In specific examples, mortar containing 50% fly ash and 50% cement in cementitious materials demonstrated superior properties of corrosion resistance. 6 figs.

Inventors:
; ; ;
Issue Date:
Research Org.:
New Jersey Institute of Technology, Newark, NJ (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672526
Patent Number(s):
5772752
Application Number:
PAN: 8-737,665
Assignee:
New Jersey Inst. of Tech., Newark, NJ (United States)
DOE Contract Number:  
FG22-90PC90299
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 30 Jun 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 01 COAL, LIGNITE, AND PEAT; CONCRETES; MORTARS; CEMENTS; FLY ASH; WASTE PRODUCT UTILIZATION; CORROSION RESISTANCE; INORGANIC ACIDS; SULFATES; COMPRESSION STRENGTH

Citation Formats

Liskowitz, J W, Wecharatana, M, Jaturapitakkul, C, and Cerkanowicz, A E. Sulfate and acid resistant concrete and mortar. United States: N. p., 1998. Web.
Liskowitz, J W, Wecharatana, M, Jaturapitakkul, C, & Cerkanowicz, A E. Sulfate and acid resistant concrete and mortar. United States.
Liskowitz, J W, Wecharatana, M, Jaturapitakkul, C, and Cerkanowicz, A E. Tue . "Sulfate and acid resistant concrete and mortar". United States.
@article{osti_672526,
title = {Sulfate and acid resistant concrete and mortar},
author = {Liskowitz, J W and Wecharatana, M and Jaturapitakkul, C and Cerkanowicz, A E},
abstractNote = {The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction and other applications, which hardenable mixtures demonstrate significant levels of acid and sulfate resistance while maintaining acceptable compressive strength properties. The acid and sulfate hardenable mixtures of the invention containing fly ash comprise cementitious materials and a fine aggregate. The cementitous materials may comprise fly ash as well as cement. The fine aggregate may comprise fly ash as well as sand. The total amount of fly ash in the hardenable mixture ranges from about 60% to about 120% of the total amount of cement, by weight, whether the fly ash is included as a cementious material, fine aggregate, or an additive, or any combination of the foregoing. In specific examples, mortar containing 50% fly ash and 50% cement in cementitious materials demonstrated superior properties of corrosion resistance. 6 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {6}
}