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한국건축시공학회 / v.8, no.3, 2008년, pp.111-117 
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혼화재를 조합 사용한 초지연 콘크리트의 응결시간 추정
( Estimation of the Setting Time of the Super Retarding Concrete Combining Mineral Admixtures ) |
| 한민철; 청주대 건축공학과;
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| 초 록 |
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| This study provides the setting time prediction method of super retarding concrete incorporating mineral admixtures at the same time including fly ash(FA), blast furnace slag(BS) based on maturity method. The setting time was retarded, as super retarding agent contents increase and curing temperature decreases. In addition, apparent activation energy by Arrhenius function was ranged from $24{sim}35KJ/mol$ with slightly difference along with mixture proportion. This value is smaller than existing value $30{sim}50KJ/mol$. It is Indicated that equivalent age using setting time can be a proper method to predict setting time and it also exhibited comparable relativity between prediction value and measurement value. Therefore, this study provided setting time prediction value with super retarding agent contents and mineral admixture combination. Setting time prediction equation provided herein is possibly valid for estimating precise setting time of the super retarding concrete at the job site. |
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| 키워드 |
| 겉보기 활성화 에너지;혼화재료;응결시간;등가재령;초지연제;Apparent Activation Energy;Mineral Admixture;Setting Time;Equivalent Age;Super Retarding Agent; |
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한국건축시공학회지 / v.8, no.3, 2008년, pp.111-117
한국건축시공학회
ISSN : 1598-2033
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200824556526637)
언어 : 한국어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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