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Practical use technology of coal ash (Poz-O-Tec); Sekitanbai no yuko riyo gijutsu (POZ-O-TEC)

Abstract

In order to utilize more effectively coal ash whose generation amount is increasing year after year, studies have been made on a technology to manufacture and utilize a high-strength substance solidified under normal temperature by utilizing hydration reaction of pozzolan system (Poz-O-Tec). The study works have been done as a subsidy operation of the Agency of Natural Resources and Energy, and were completed in fiscal 1995. Poz-O-Tec is a wet powder made of coal ash and stack gas desulfurization sludge (gypsum) added and mixed with lime and an adequate amount of water, which solidifies by hydration as pozzolan does. The same method as used for ordinary sands may be used as the basic application method. Because this is the material whose strength increases after construction, thickness of construction may be reduced smaller than in constructions using soils and sands. Test constructions of about sixty cases have been carried out to date, typically represented in use as a road bed material, banking, and a base material for water-barrier gutters. High-strength solid material which is stable under normal temperature may be obtained by adjusting calcium content. As a result of its effectiveness in practical use having been verified, a certificate of technological  More>>
Authors:
Konno, K; [1]  Saito, Y; [2]  Nagaya, Y [3] 
  1. Center for Coal Utilization, Japan, Tokyo (Japan)
  2. Mitsui Mining Co. Ltd., Tokyo (Japan)
  3. Mitsui Construction Co. Ltd., Tokyo (Japan)
Publication Date:
Sep 01, 1996
Product Type:
Miscellaneous
Report Number:
ETDE/JP-98750585
Reference Number:
SCA: 010800; 015000; 320303; PA: JP-97:0K0413; EDB-98:071225; SN: 98001942579
Resource Relation:
Other Information: PBD: Sep 1996; Related Information: Is Part Of 6th Conference on Coal Utilization Technology; PB: 305 p.; Dai 6 kai sekitan riyo gijutsu kaigi koenshu
Subject:
01 COAL, LIGNITE, AND PEAT; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; FLY ASH; COAL; WASTE PRODUCT UTILIZATION; SLUDGES; DESULFURIZATION; FLUE GAS; CONCRETES; ADDITIVES; FINANCING; HYDRATION; GYPSUM; POWDERS; PAVEMENTS; ROADS; OVERBURDEN; SOLIDIFICATION; CERTIFICATION
OSTI ID:
623072
Research Organizations:
Center for Coal Utilization, Japan, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE98750585; TRN: JN97K0413
Availability:
Available from Center for Coal Utilization, Japan, 3-4, Okubo 2-chome, Shinjuku-ku, Tokyo, (Japan); OSTI as DE98750585
Submitting Site:
NEDO
Size:
pp. 204-216
Announcement Date:

Citation Formats

Konno, K, Saito, Y, and Nagaya, Y. Practical use technology of coal ash (Poz-O-Tec); Sekitanbai no yuko riyo gijutsu (POZ-O-TEC). Japan: N. p., 1996. Web.
Konno, K, Saito, Y, & Nagaya, Y. Practical use technology of coal ash (Poz-O-Tec); Sekitanbai no yuko riyo gijutsu (POZ-O-TEC). Japan.
Konno, K, Saito, Y, and Nagaya, Y. 1996. "Practical use technology of coal ash (Poz-O-Tec); Sekitanbai no yuko riyo gijutsu (POZ-O-TEC)." Japan.
@misc{etde_623072,
title = {Practical use technology of coal ash (Poz-O-Tec); Sekitanbai no yuko riyo gijutsu (POZ-O-TEC)}
author = {Konno, K, Saito, Y, and Nagaya, Y}
abstractNote = {In order to utilize more effectively coal ash whose generation amount is increasing year after year, studies have been made on a technology to manufacture and utilize a high-strength substance solidified under normal temperature by utilizing hydration reaction of pozzolan system (Poz-O-Tec). The study works have been done as a subsidy operation of the Agency of Natural Resources and Energy, and were completed in fiscal 1995. Poz-O-Tec is a wet powder made of coal ash and stack gas desulfurization sludge (gypsum) added and mixed with lime and an adequate amount of water, which solidifies by hydration as pozzolan does. The same method as used for ordinary sands may be used as the basic application method. Because this is the material whose strength increases after construction, thickness of construction may be reduced smaller than in constructions using soils and sands. Test constructions of about sixty cases have been carried out to date, typically represented in use as a road bed material, banking, and a base material for water-barrier gutters. High-strength solid material which is stable under normal temperature may be obtained by adjusting calcium content. As a result of its effectiveness in practical use having been verified, a certificate of technological judgment has been issued for the material by the Civil Engineering Research Center. 3 refs., 11 figs., 2 tabs.}
place = {Japan}
year = {1996}
month = {Sep}
}