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1楼 2014-05-26 21:42:18
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showmeet: 金币+1 2014-05-26 21:55:39
Accession number:  20134917057778

  Title:  Effect of sulfate on dispersity and adsorption capacity of superplasticizer
  Authors:  Jiang, Nan1, 2; Wang, Zhi1 Email author cquwangzhi@126.com; Wang, Linlong3; Kao, Youzhe1; Qian, Jueshi3  
  Author affiliation:  1 College of Chemistry and Chemical Engineering Chongqing University, Chongqing 400044, China  
   2 China Automotive Engineering Research Institute Co., Ltd, Chongqing 401122, China  
   3 College of Material Science and Engineering Chongqing University, Chongqing 400045, China  
  Corresponding author:  Wang, Z. (cquwangzhi@126.com)  
  Source title:  Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
  Abbreviated source title:  Kuei Suan Jen Hsueh Pao
  Volume:  41
  Issue:  11
  Issue date:  November 2013
  Publication year:  2013
  Pages:  1521-1526
  Language:  Chinese
  ISSN:  04545648  
  CODEN:  KSYHA5  
  Document type:  Journal article (JA)
  Publisher:  Chinese Ceramic Society, Baiwanzhuang, Beijing, 100831, China
  Abstract:  The effect of sulfate on the fluidity of cement paste with superplasticizer and the adsorption capacity of superplasticizer by calcium silicate hydrates were investigated. The results show that Na2SO4 has a pronounced negative effect on the dispersity and adsorption of superplasticizer. However, the effect of CaSO4 · 2H2O on the dispersity and adsorption capacity of superplasticizer is slight. It is indicated that the competitive adsorption between sulfate and superplasticizer, the aggregation behavior of superplasticizer and the increase of Ca2+ dissolved are due to the effect of sulfate on the dispersity of superplasticizer. It is suggested that the dosage of Na2SO4 as an early strength agent should be strictly controlled in practical engineering in order to ensure the cement paste maintain with a high dispersity.
  Number of references:  8
  Main heading:  Sulfur compounds  
  Controlled terms:  Adsorption  -  Hydrates  -  Sodium  
  Uncontrolled terms:  Adsorption capacities  -  Aggregation behavior  -  Competitive adsorption  -  Polycarboxylate-type superplasticizer  -  Sulfates  
  Classification code:  549.1 Alkali Metals -  802.3 Chemical Operations -  804 Chemical Products Generally
  DOI:  10.7521/j.issn.0454-5648.2013.11.10
  Database:  Compendex
   Compilation and indexing terms, © 2013 Elsevier
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3楼2014-05-26 21:50:50
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【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与，应助指数 +1
showmeet: 金币+7 2014-05-26 21:55:29
jssxh: 金币+3, 检索EPI+1, 谢谢参与，请继续关注本版块！ 2014-05-27 08:03:17
Accession number:       
20134917057778
        Title:        Effect of sulfate on dispersity and adsorption capacity of superplasticizer
        Authors:         Jiang, Nan1, 2; Wang, Zhi1 ; Wang, Linlong3; Kao, Youzhe1; Qian, Jueshi3
        Author affiliation:        1 College of Chemistry and Chemical Engineering Chongqing University, Chongqing 400044, China
                2 China Automotive Engineering Research Institute Co., Ltd, Chongqing 401122, China
                3 College of Material Science and Engineering Chongqing University, Chongqing 400045, China
        Corresponding author:         Wang, Z. (cquwangzhi@126.com)
        Source title:        Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
        Abbreviated source title:        Kuei Suan Jen Hsueh Pao
        Volume:        41
        Issue:        11
        Issue date:        November 2013
        Publication year:        2013
        Pages:        1521-1526
        Language:        Chinese
        ISSN:         04545648
        CODEN:         KSYHA5
        Document type:        Journal article (JA)
        Publisher:        Chinese Ceramic Society, Baiwanzhuang, Beijing, 100831, China
        Abstract:        The effect of sulfate on the fluidity of cement paste with superplasticizer and the adsorption capacity of superplasticizer by calcium silicate hydrates were investigated. The results show that Na2SO4 has a pronounced negative effect on the dispersity and adsorption of superplasticizer. However, the effect of CaSO4 · 2H2O on the dispersity and adsorption capacity of superplasticizer is slight. It is indicated that the competitive adsorption between sulfate and superplasticizer, the aggregation behavior of superplasticizer and the increase of Ca2+ dissolved are due to the effect of sulfate on the dispersity of superplasticizer. It is suggested that the dosage of Na2SO4 as an early strength agent should be strictly controlled in practical engineering in order to ensure the cement paste maintain with a high dispersity.
        Number of references:        8
        Main heading:         Sulfur compounds
        Controlled terms:         Adsorption  -  Hydrates  -  Sodium
        Uncontrolled terms:         Adsorption capacities  -  Aggregation behavior  -  Competitive adsorption  -  Polycarboxylate-type superplasticizer  -  Sulfates
        Classification code:         549.1 Alkali Metals -  802.3 Chemical Operations -  804 Chemical Products Generally
        DOI:        10.7521/j.issn.0454-5648.2013.11.10
        Database:        Compendex
                Compilation and indexing terms, © 2013 Elsevier Inc.
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2楼2014-05-26 21:48:51
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baiyuefei

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showmeet: 金币+1 2014-05-26 21:55:43
Accession number:  20134917057778
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4楼2014-05-26 21:51:15
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引用回帖:
4楼: Originally posted by baiyuefei at 2014-05-26 21:51:15
Accession number:  20134917057778

不好意思， 风雪版
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5楼2014-05-26 21:53:39
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