Influence of Styrene-Acrylic Ester Dispersion on the Early Hydration of Cement
Early hydration of cement in the presence of styrene-acrylic ester (SAE) dispersion was investigated, and the hydration heat, hydration degree, and hydrates were analyzed using isothermal calorimeter, XRD, and ESEM. The results show that SAE dispersion prolongs the induction period, postpones and sh...
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Wiley
2014-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2014/970298 |
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| author | Ru Wang Xiaoxin Shi |
| author_facet | Ru Wang Xiaoxin Shi |
| author_sort | Ru Wang |
| collection | DOAJ |
| description | Early hydration of cement in the presence of styrene-acrylic ester (SAE) dispersion was investigated, and the hydration heat, hydration degree, and hydrates were analyzed using isothermal calorimeter, XRD, and ESEM. The results show that SAE dispersion prolongs the induction period, postpones and shortens the accelerating period, and inhibits the decelerating and stable periods of cement hydration. The hydration heat and hydration degree of cement in the presence of SAE dispersion are less than those of the control. SAE dispersion inhibits the formation of C4AH13 and thus AFt, and more SAE dispersion brings stronger influence, but it enhances the stability of AFt. AFt generation during the early hydration period is controlled gradually by the reaction of C4AH13 generation with increasing SAE dispersion, but this is controlled by the reaction of C4AH13 consumption for the control paste. Besides, SAE dispersion retards and inhibits the formation of CH and C-S-H and also changes their morphology. |
| format | Article |
| id | doaj-art-e30f7c1c78b843fea325264b9667a8f1 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-e30f7c1c78b843fea325264b9667a8f12025-02-03T01:33:14ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422014-01-01201410.1155/2014/970298970298Influence of Styrene-Acrylic Ester Dispersion on the Early Hydration of CementRu Wang0Xiaoxin Shi1Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, 4800 Cao’an Road, Shanghai 201804, ChinaKey Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, 4800 Cao’an Road, Shanghai 201804, ChinaEarly hydration of cement in the presence of styrene-acrylic ester (SAE) dispersion was investigated, and the hydration heat, hydration degree, and hydrates were analyzed using isothermal calorimeter, XRD, and ESEM. The results show that SAE dispersion prolongs the induction period, postpones and shortens the accelerating period, and inhibits the decelerating and stable periods of cement hydration. The hydration heat and hydration degree of cement in the presence of SAE dispersion are less than those of the control. SAE dispersion inhibits the formation of C4AH13 and thus AFt, and more SAE dispersion brings stronger influence, but it enhances the stability of AFt. AFt generation during the early hydration period is controlled gradually by the reaction of C4AH13 generation with increasing SAE dispersion, but this is controlled by the reaction of C4AH13 consumption for the control paste. Besides, SAE dispersion retards and inhibits the formation of CH and C-S-H and also changes their morphology.http://dx.doi.org/10.1155/2014/970298 |
| spellingShingle | Ru Wang Xiaoxin Shi Influence of Styrene-Acrylic Ester Dispersion on the Early Hydration of Cement Advances in Materials Science and Engineering |
| title | Influence of Styrene-Acrylic Ester Dispersion on the Early Hydration of Cement |
| title_full | Influence of Styrene-Acrylic Ester Dispersion on the Early Hydration of Cement |
| title_fullStr | Influence of Styrene-Acrylic Ester Dispersion on the Early Hydration of Cement |
| title_full_unstemmed | Influence of Styrene-Acrylic Ester Dispersion on the Early Hydration of Cement |
| title_short | Influence of Styrene-Acrylic Ester Dispersion on the Early Hydration of Cement |
| title_sort | influence of styrene acrylic ester dispersion on the early hydration of cement |
| url | http://dx.doi.org/10.1155/2014/970298 |
| work_keys_str_mv | AT ruwang influenceofstyreneacrylicesterdispersionontheearlyhydrationofcement AT xiaoxinshi influenceofstyreneacrylicesterdispersionontheearlyhydrationofcement |