Engineering and sulfate resistance properties of slag-CFBC fly ash paste and mortar

Tien-Dung  Nguyen; Ta-Peng Chang; Chun-Tao Chen

Engineering and sulfate resistance properties of slag-CFBC fly ash paste and mortar

Tien-Dung Nguyen, Ta-Peng Chang, Chun-Tao Chen

Infrastructure and Resilience

National Taiwan University of Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

This study explores a SCA cement produced by mixing slag (S) and circulating fluidized bed combustion (CFBC) fly ash (CA). The hydration products of SCA cement detected by X-ray Diffraction and Thermogravimetric Analysis were ettringite, calcium silicate hydrate and calcium aluminium silicate hydrate, all of which produced dense microstructure. The compressive strengths of SCA paste and mortar specimens reached 75 MPa at 28 days. The expansion of SCA paste and mortar compensated for drying shrinkage, thereby leading to low ultimate shrinkage. The SCA mortars had good resistance to sulfate attack with the strength loss about 15% or less.

Original language	English
Pages (from-to)	40-48
Number of pages	8
Journal	Construction and Building Materials
Volume	63
Publication status	Published - 2014

Cite this

@article{1b000ef6ba1d4061a6da9261fe833d3d,

title = "Engineering and sulfate resistance properties of slag-CFBC fly ash paste and mortar",

abstract = "This study explores a SCA cement produced by mixing slag (S) and circulating fluidized bed combustion (CFBC) fly ash (CA). The hydration products of SCA cement detected by X-ray Diffraction and Thermogravimetric Analysis were ettringite, calcium silicate hydrate and calcium aluminium silicate hydrate, all of which produced dense microstructure. The compressive strengths of SCA paste and mortar specimens reached 75 MPa at 28 days. The expansion of SCA paste and mortar compensated for drying shrinkage, thereby leading to low ultimate shrinkage. The SCA mortars had good resistance to sulfate attack with the strength loss about 15% or less.",

author = "Tien-Dung Nguyen and Ta-Peng Chang and Chun-Tao Chen",

year = "2014",

language = "English",

volume = "63",

pages = "40--48",

journal = "Construction and Building Materials",

issn = "0950-0618",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Engineering and sulfate resistance properties of slag-CFBC fly ash paste and mortar

AU - Nguyen, Tien-Dung

AU - Chang, Ta-Peng

AU - Chen, Chun-Tao

PY - 2014

Y1 - 2014

N2 - This study explores a SCA cement produced by mixing slag (S) and circulating fluidized bed combustion (CFBC) fly ash (CA). The hydration products of SCA cement detected by X-ray Diffraction and Thermogravimetric Analysis were ettringite, calcium silicate hydrate and calcium aluminium silicate hydrate, all of which produced dense microstructure. The compressive strengths of SCA paste and mortar specimens reached 75 MPa at 28 days. The expansion of SCA paste and mortar compensated for drying shrinkage, thereby leading to low ultimate shrinkage. The SCA mortars had good resistance to sulfate attack with the strength loss about 15% or less.

AB - This study explores a SCA cement produced by mixing slag (S) and circulating fluidized bed combustion (CFBC) fly ash (CA). The hydration products of SCA cement detected by X-ray Diffraction and Thermogravimetric Analysis were ettringite, calcium silicate hydrate and calcium aluminium silicate hydrate, all of which produced dense microstructure. The compressive strengths of SCA paste and mortar specimens reached 75 MPa at 28 days. The expansion of SCA paste and mortar compensated for drying shrinkage, thereby leading to low ultimate shrinkage. The SCA mortars had good resistance to sulfate attack with the strength loss about 15% or less.

M3 - Article

VL - 63

SP - 40

EP - 48

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

ER -

Engineering and sulfate resistance properties of slag-CFBC fly ash paste and mortar

Abstract

Fingerprint

Cite this