The effect of autoclave pressure, temperature and duration time on mechanical properties of reactive powder concrete

被引：154

作者：

Yazici, Halit ^{[1
]}

Deniz, Engin ^{[1
]}

Baradan, Bulent ^{[1
]}

机构：

[1] Dokuz Eylul Univ, Fac Engn, Dept Civil Engn, Izmir, Turkey

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2013年 / 42卷

关键词：

Reactive powder concrete; Autoclaving; Mechanical properties; Steel fiber; Silica fume; Microstructure; HIGH-STRENGTH CONCRETE; BLAST-FURNACE SLAG; CURING CONDITIONS; MINERAL ADMIXTURES; SILICA FUME; REPLACEMENT; DURABILITY;

D O I：

10.1016/j.conbuildmat.2013.01.003

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The mechanical properties (compressive and flexural strength) of reactive powder concrete (RPC) have been investigated under autoclave curing and compared with standard water curing condition. Three significant parameters in autoclave curing have been investigated; autoclave temperature, pressure and time. The effects of silica fume and steel microfibers incorporation on mechanical performance were also studied. Test results indicate that;,compressive strength of RPC increases significantly after autoclaving compared to the standard water curing. Autoclave time, temperature and pressure also influenced the mechanical performance of RPC considerably. It can be said that, there is critical duration time for each pressure and temperature conditions. The mechanical properties can be influenced negatively beyond this value. Also, SEM micrographs and mercury porosimetry results revealed the transformation of microstructure of RPC caused by autoclaving process. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：53 / 63

页数：11

共 33 条

[1] The durability characteristics of high performance concrete:: a review [J].

Aïtcin, PC .

CEMENT & CONCRETE COMPOSITES, 2003, 25 (4-5) :409-420

[2] Effects of curing conditions on properties of concrete using slag replacement [J].

Aldea, CM ;

Young, F ;

Wang, KJ ;

Shah, SP .

CEMENT AND CONCRETE RESEARCH, 2000, 30 (03) :465-472

[3] Effect of silica fume on steel fiber bond characteristics in reactive powder concrete [J].

Chan, YW ;

Chu, SH .

CEMENT AND CONCRETE RESEARCH, 2004, 34 (07) :1167-1172

[4] MICROSTRUCTURAL ANALYSIS OF RPC (REACTIVE POWDER CONCRETE) [J].

CHEYREZY, M ;

MARET, V ;

FROUIN, L .

CEMENT AND CONCRETE RESEARCH, 1995, 25 (07) :1491-1500

[5]

ELHEMALY SAS, 1977, CEMENT CONCRETE RES, V7, P429

[6] Nonevaporable water from neat OPC and replacement materials in composite cements hydrated at different temperatures [J].

Escalante-Garcia, JI .

CEMENT AND CONCRETE RESEARCH, 2003, 33 (11) :1883-1888

[7] The microstructure and mechanical properties of blended cements hydrated at various temperatures [J].

Escalante-García, JI ;

Sharp, JH .

CEMENT AND CONCRETE RESEARCH, 2001, 31 (05) :695-702

[8] Thermal treatment of C-S-H gel at 1 bar H2O pressure up to 200 °C [J].

Glasser, FP ;

Hong, SY .

CEMENT AND CONCRETE RESEARCH, 2003, 33 (02) :271-279

[9]

GUVENSOY G, 2004, INT S ULTR HIGH PERF, P649

[10] Effect of pre-setting pressure applied to mechanical behaviours of reactive powder concrete during setting phase [J].

Ipek, Metin ;

Yilmaz, Kemalettin ;

Sumer, Mansur ;

Saribiyik, Mehmet .

CONSTRUCTION AND BUILDING MATERIALS, 2011, 25 (01) :61-68

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