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Preparation of Concrete Superplasticizer by Oxidation-Sulfomethylation of Sodium Lignosulfonate
Yu, Guang; Li, Bin; Wang, Haisong1; Liu, Chao; Mu, Xindong
2013
发表期刊BIORESOURCES
卷号8期号:1页码:1055-1063
摘要Modification of sodium lignosulfonate (SLS) via combined oxidation-sulfomethylation was employed to prepare concrete superplasticizer. It was found that the oxidation of SLS by peroxyacetic acid facilitated the subsequent sulfomethylation. After modification, both the molecular weight and sulfo group content were significantly increased, and thus the performance of SLS as water reducer was improved. With the water to cement ratio at 0.4 and 0.3% (w/w) modified SLS, the fluidity of cement paste could reach 185 mm, which was 15% higher than that with unmodified SLS. It was also comparable to the performance of commercial naphthalene superplasticizer under the same conditions.; Modification of sodium lignosulfonate (SLS) via combined oxidation-sulfomethylation was employed to prepare concrete superplasticizer. It was found that the oxidation of SLS by peroxyacetic acid facilitated the subsequent sulfomethylation. After modification, both the molecular weight and sulfo group content were significantly increased, and thus the performance of SLS as water reducer was improved. With the water to cement ratio at 0.4 and 0.3% (w/w) modified SLS, the fluidity of cement paste could reach 185 mm, which was 15% higher than that with unmodified SLS. It was also comparable to the performance of commercial naphthalene superplasticizer under the same conditions.
文章类型Article
关键词Sodium Lignosulfonate Concrete Superplasticizer Peroxyacetic Acid Black Liquor
学科领域绿色化学催化
WOS标题词Science & Technology ; Technology
关键词[WOS]CALCIUM LIGNOSULFONATE ; WATER REDUCER ; LIGNIN ; HYDROXYMETHYLATION ; ULTRAFILTRATION ; PERFORMANCE ; DISPERSANT ; CEMENT
收录类别SCI
语种英语
WOS研究方向Materials Science
WOS类目Materials Science, Paper & Wood
WOS记录号WOS:000314632300086
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/1666
专题绿色化学催化研究组
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, Key Lab Biofuels, Qingdao 266101, Peoples R China
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GB/T 7714
Yu, Guang,Li, Bin,Wang, Haisong,et al. Preparation of Concrete Superplasticizer by Oxidation-Sulfomethylation of Sodium Lignosulfonate[J]. BIORESOURCES,2013,8(1):1055-1063.
APA Yu, Guang,Li, Bin,Wang, Haisong,Liu, Chao,&Mu, Xindong.(2013).Preparation of Concrete Superplasticizer by Oxidation-Sulfomethylation of Sodium Lignosulfonate.BIORESOURCES,8(1),1055-1063.
MLA Yu, Guang,et al."Preparation of Concrete Superplasticizer by Oxidation-Sulfomethylation of Sodium Lignosulfonate".BIORESOURCES 8.1(2013):1055-1063.
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