Effects of a carboxylic acid/sulfonic acid copolymer on the material properties of cementitious materials

Tung Sheng Liao; Chao Lung Hwang; Yi Shian Ye; Kung Chung Hsu

doi:10.1016/j.cemconres.2005.10.005

Effects of a carboxylic acid/sulfonic acid copolymer on the material properties of cementitious materials

Tung Sheng Liao, Chao Lung Hwang, Yi Shian Ye, Kung Chung Hsu^*

^*Corresponding author for this work

Department of Chemistry

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

28 Citations (Scopus)

Abstract

The effects of a carboxylic acid/sulfonic acid copolymer (PMAMP) on the properties of mortars or concrete made with Type I Portland cement were investigated. PMAMP was prepared from methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid (AMP) in a basic condition through a free radical polymerization. The results indicate that PMAMP with the AMP content of 20-60%, and a weight-average molecular weight (MW) of about 5 × 10⁴, is effective in dispersing cement particles and the resulting mortars or concrete show good fluidity or workability. Besides, PMAMP with higher molecular weigh is more capable of maintaining the workability along with elapsed time. Compared with a commercial sulfonated naphthalene formaldehyde superplasticizer (SNF), PMAMP appears to be more effective in promoting concrete workability and preventing the slump loss. Finally, concrete incorporated with different PMAMPs at W/B = 0.28 shows similar compressive strength-developing behavior and meets the designed strength value.

Original language	English
Pages (from-to)	650-655
Number of pages	6
Journal	Cement and Concrete Research
Volume	36
Issue number	4
DOIs	https://doi.org/10.1016/j.cemconres.2005.10.005
Publication status	Published - 2006 Apr

Keywords

Carboxylic acid/sulfonic acid copolymer
Concrete
Superplasticizer
Workability

ASJC Scopus subject areas

Building and Construction
General Materials Science

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10.1016/j.cemconres.2005.10.005

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title = "Effects of a carboxylic acid/sulfonic acid copolymer on the material properties of cementitious materials",

abstract = "The effects of a carboxylic acid/sulfonic acid copolymer (PMAMP) on the properties of mortars or concrete made with Type I Portland cement were investigated. PMAMP was prepared from methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid (AMP) in a basic condition through a free radical polymerization. The results indicate that PMAMP with the AMP content of 20-60%, and a weight-average molecular weight (MW) of about 5 × 104, is effective in dispersing cement particles and the resulting mortars or concrete show good fluidity or workability. Besides, PMAMP with higher molecular weigh is more capable of maintaining the workability along with elapsed time. Compared with a commercial sulfonated naphthalene formaldehyde superplasticizer (SNF), PMAMP appears to be more effective in promoting concrete workability and preventing the slump loss. Finally, concrete incorporated with different PMAMPs at W/B = 0.28 shows similar compressive strength-developing behavior and meets the designed strength value.",

keywords = "Carboxylic acid/sulfonic acid copolymer, Concrete, Superplasticizer, Workability",

author = "Liao, {Tung Sheng} and Hwang, {Chao Lung} and Ye, {Yi Shian} and Hsu, {Kung Chung}",

note = "Funding Information: The authors are grateful for the support of this work by the National Science Council of the Republic of China (Contract # NSC-91-2622-E-003-002-CC3).",

year = "2006",

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doi = "10.1016/j.cemconres.2005.10.005",

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AU - Liao, Tung Sheng

AU - Hwang, Chao Lung

AU - Ye, Yi Shian

AU - Hsu, Kung Chung

N1 - Funding Information: The authors are grateful for the support of this work by the National Science Council of the Republic of China (Contract # NSC-91-2622-E-003-002-CC3).

PY - 2006/4

Y1 - 2006/4

N2 - The effects of a carboxylic acid/sulfonic acid copolymer (PMAMP) on the properties of mortars or concrete made with Type I Portland cement were investigated. PMAMP was prepared from methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid (AMP) in a basic condition through a free radical polymerization. The results indicate that PMAMP with the AMP content of 20-60%, and a weight-average molecular weight (MW) of about 5 × 104, is effective in dispersing cement particles and the resulting mortars or concrete show good fluidity or workability. Besides, PMAMP with higher molecular weigh is more capable of maintaining the workability along with elapsed time. Compared with a commercial sulfonated naphthalene formaldehyde superplasticizer (SNF), PMAMP appears to be more effective in promoting concrete workability and preventing the slump loss. Finally, concrete incorporated with different PMAMPs at W/B = 0.28 shows similar compressive strength-developing behavior and meets the designed strength value.

AB - The effects of a carboxylic acid/sulfonic acid copolymer (PMAMP) on the properties of mortars or concrete made with Type I Portland cement were investigated. PMAMP was prepared from methacrylic acid and 2-acrylamido-2-methylpropane sulfonic acid (AMP) in a basic condition through a free radical polymerization. The results indicate that PMAMP with the AMP content of 20-60%, and a weight-average molecular weight (MW) of about 5 × 104, is effective in dispersing cement particles and the resulting mortars or concrete show good fluidity or workability. Besides, PMAMP with higher molecular weigh is more capable of maintaining the workability along with elapsed time. Compared with a commercial sulfonated naphthalene formaldehyde superplasticizer (SNF), PMAMP appears to be more effective in promoting concrete workability and preventing the slump loss. Finally, concrete incorporated with different PMAMPs at W/B = 0.28 shows similar compressive strength-developing behavior and meets the designed strength value.

KW - Carboxylic acid/sulfonic acid copolymer

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KW - Workability

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Effects of a carboxylic acid/sulfonic acid copolymer on the material properties of cementitious materials

Abstract

Keywords

ASJC Scopus subject areas

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