Improved fire resistance by using Portland-pozzolana or Portland-fly ash cements

被引：35

作者：

Lubloy, Eva ^{[1
]}

Kopecsko, Katalin ^{[2
]}

Balazs, Gyorgy L. ^{[1
]}

Restas, Agoston ^{[3
]}

Szilagyi, Imre M. ^{[4
,5
]}

机构：

[1] Budapest Univ Technol & Econ, Dept Construct Mat & Technol, H-1521 Budapest, Hungary

[2] Budapest Univ Technol & Econ, Dept Engn Geol & Geotech, H-1521 Budapest, Hungary

[3] Natl Univ Publ Serv, Dept Fire Prevent & Rescue Control, Hungaria Krt 9-11, H-1081 Budapest, Hungary

[4] Budapest Univ Technol & Econ, Dept Inorgan & Analyt Chem, Szent Gellert Ter 4, H-1111 Budapest, Hungary

[5] Hungarian Acad Sci, MTA BME Tech Analyt Chem Res Grp, Szent Gellert Ter 4, H-1111 Budapest, Hungary

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2017年 / 129卷 / 02期

关键词：

Fire; Thermal analysis; Strength; Pozzolanic additives; Fly ash; Pozzolans; Trass; HIGH-TEMPERATURE; STRENGTH; PASTE; CONCRETE;

D O I：

10.1007/s10973-017-6245-0

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Our study was directed to the analysis of the influence of various types of cements on the behaviour of concrete at high temperatures. In our experiments binary blended and ordinary Portland cements were involved: two Portland cements with different clinker compositions and Portland cements containing pozzolanic additives as replacement of clinkers. In the first part of the study we focused on the influence of cement types where cement paste specimens were investigated. Then, based on the results of cement paste specimens, concretes specimens were prepared with some selected types of cements. Most important observation of our experimental study was that the pozzolanic additives and their increased amount have a favourable effect on the heat resistance (fire resistance) properties of concrete.

引用

页码：925 / 936

页数：12

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