UNEXPECTED EXPANSION OF CONCRETE MADE WITH LAUMONTITE CONTAINING AGGREGATES UNDER SEAWATER CONDITION

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HAMADA H.; YAMAJI T.; MOHAMMED T.U.; TORII K.

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Journal Paper

Paper Information

Journal: ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING) Year:2005 | Volume:6 | Issue:5 Page(s): 361-372

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Information Journal Paper

Title

UNEXPECTED EXPANSION OF CONCRETE MADE WITH LAUMONTITE CONTAINING AGGREGATES UNDER SEAWATER CONDITION

Author(s)

HAMADA H. | YAMAJI T. | MOHAMMED T.U. | TORII K. | Issue Writer Certificate

Keywords

LAUMONTITE

ETTRINGITE

SEAWATER

SUBMERGED

TIDAL

EXPANTION

Abstract

Deterioration of steam-cured concrete specimens made with LAUMONTITE containing aggregates, under marine SUBMERGED, TIDAL, and atmospheric exposures for 30 years, was investigated. The expansion of the specimens exposed to the marine SUBMERGED and TIDAL exposures ranged from complete disintegration to the moderate deterioration. The deteriorated regions contains little calcium hydroxide as well as calcium silicate hydrates, but rich with ETTRINGITE, brucite, and calcite. At the deteriorated region, white rim of ETTRINGITE crystal is found around the aggregates. ETTRINGITE, brucite, and calcite are also found at the voids as well as along the cracked path. No visible crack was found on the surface of the atmospheric specimens. It is clearly understood that exposure condition is a governing factor related to the expansion caused by the LAUMONTITE mineral. No expansion of 30 years old atmospheric and TIDAL specimens is found after further wetting and drying exposure utilizing natural SEAWATER of temperature 60°C.

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APA: Copy

HAMADA, H., YAMAJI, T., MOHAMMED, T.U., & TORII, K.. (2005). UNEXPECTED EXPANSION OF CONCRETE MADE WITH LAUMONTITE CONTAINING AGGREGATES UNDER SEAWATER CONDITION. ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), 6(5), 361-372. SID. https://sid.ir/paper/298597/en

Vancouver: Copy

HAMADA H., YAMAJI T., MOHAMMED T.U., TORII K.. UNEXPECTED EXPANSION OF CONCRETE MADE WITH LAUMONTITE CONTAINING AGGREGATES UNDER SEAWATER CONDITION. ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING)[Internet]. 2005;6(5):361-372. Available from: https://sid.ir/paper/298597/en

IEEE: Copy

H. HAMADA, T. YAMAJI, T.U. MOHAMMED, and K. TORII, “UNEXPECTED EXPANSION OF CONCRETE MADE WITH LAUMONTITE CONTAINING AGGREGATES UNDER SEAWATER CONDITION,” ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), vol. 6, no. 5, pp. 361–372, 2005, [Online]. Available: https://sid.ir/paper/298597/en

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