The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC
The effect of synthetic CAH (130°C; 8 h; CaO/(SiO2 + Al2O3) = 0.55; Al2O3/(SiO2 + Al2O3) = 0.1, 0.15) with different crystallinity on the hydration kinetics of OPC at early stages of hydration was investigated. Also, the formation mechanism of compounds during OPC hydration was highlighted. It was d...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/3605845 |
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| author | Jolanta Doneliene Anatolijus Eisinas Kestutis Baltakys Agne Bankauskaite |
| author_facet | Jolanta Doneliene Anatolijus Eisinas Kestutis Baltakys Agne Bankauskaite |
| author_sort | Jolanta Doneliene |
| collection | DOAJ |
| description | The effect of synthetic CAH (130°C; 8 h; CaO/(SiO2 + Al2O3) = 0.55; Al2O3/(SiO2 + Al2O3) = 0.1, 0.15) with different crystallinity on the hydration kinetics of OPC at early stages of hydration was investigated. Also, the formation mechanism of compounds during OPC hydration was highlighted. It was determined that the synthetic CAH accelerated the initial reaction and shortened the induction period. Also, the second and third exothermic reactions begun earlier, and, during the latter reaction, the higher values of the heat flow were obtained in comparison with pure OPC samples. At later stages of hydration, synthetic CAH affect the OPC hydration as the usual pozzolanic additives; moreover, the larger values of cumulative heat were reached. It should be noted that the nature of synthetic CAH samples accelerated the dissolution of gypsum and stimulates the earliest C3S hydration. |
| format | Article |
| id | doaj-art-816f92f73d364f9a9162495aa12414b7 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-816f92f73d364f9a9162495aa12414b72025-02-03T01:09:43ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/36058453605845The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPCJolanta Doneliene0Anatolijus Eisinas1Kestutis Baltakys2Agne Bankauskaite3Department of Silicate Technology, Kaunas University of Technology, Radvilenu 19, LT-50270 Kaunas, LithuaniaDepartment of Silicate Technology, Kaunas University of Technology, Radvilenu 19, LT-50270 Kaunas, LithuaniaDepartment of Silicate Technology, Kaunas University of Technology, Radvilenu 19, LT-50270 Kaunas, LithuaniaDepartment of Silicate Technology, Kaunas University of Technology, Radvilenu 19, LT-50270 Kaunas, LithuaniaThe effect of synthetic CAH (130°C; 8 h; CaO/(SiO2 + Al2O3) = 0.55; Al2O3/(SiO2 + Al2O3) = 0.1, 0.15) with different crystallinity on the hydration kinetics of OPC at early stages of hydration was investigated. Also, the formation mechanism of compounds during OPC hydration was highlighted. It was determined that the synthetic CAH accelerated the initial reaction and shortened the induction period. Also, the second and third exothermic reactions begun earlier, and, during the latter reaction, the higher values of the heat flow were obtained in comparison with pure OPC samples. At later stages of hydration, synthetic CAH affect the OPC hydration as the usual pozzolanic additives; moreover, the larger values of cumulative heat were reached. It should be noted that the nature of synthetic CAH samples accelerated the dissolution of gypsum and stimulates the earliest C3S hydration.http://dx.doi.org/10.1155/2016/3605845 |
| spellingShingle | Jolanta Doneliene Anatolijus Eisinas Kestutis Baltakys Agne Bankauskaite The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC Advances in Materials Science and Engineering |
| title | The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC |
| title_full | The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC |
| title_fullStr | The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC |
| title_full_unstemmed | The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC |
| title_short | The Effect of Synthetic Hydrated Calcium Aluminate Additive on the Hydration Properties of OPC |
| title_sort | effect of synthetic hydrated calcium aluminate additive on the hydration properties of opc |
| url | http://dx.doi.org/10.1155/2016/3605845 |
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