| 蒸养C80高强混凝土制备试验研究 |
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| 引用本文： | 王策.蒸养C80高强混凝土制备试验研究[J].低温建筑技术,2019,41(1):4-6. |
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| 作者姓名： | 王策 |
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| 作者单位： | 黑龙江建筑职业技术学院,哈尔滨,150025 |
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| 摘 要： | 文中主要研究了用于预应力高强混凝土桩的C80蒸养混凝土的制备影响因素。通过S95矿粉、I级粉煤灰和石膏的掺入,研究其对混凝土力学性能的影响。研究结果表明,以石膏作为碱性激发剂S95矿粉在混凝土中用量20%时,混凝土的7d蒸养抗压强度可以达到88.7MPa。当矿粉掺量为15.0%、I级粉煤灰掺量5.0%,石膏掺量2.0%时的混凝土抗压强度达到最好,7d蒸养抗压强度可以达到91.5MPa。
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| 关 键 词： | 高强混凝土 蒸汽养护 抗压强度 |
EXPERIMENTAL STUDY ON PREPARATION OF STEAMCURING C80 HIGH STRENGTH CONCRETE |
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| WANG Ce.EXPERIMENTAL STUDY ON PREPARATION OF STEAMCURING C80 HIGH STRENGTH CONCRETE[J].Low Temperature Architecture Technology,2019,41(1):4-6. |
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| Authors: | WANG Ce |
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| Affiliation: | (Heilongjiang Institute of Construction Technology,Harbin 150025,China) |
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| Abstract: | This paper mainly studied the factors that influence the preparation of C80 steam curing concrete which used for pre-stressed high strength concrete piles. We studied the effect of mineral admixtures including I grade fly ash, S95 slag and gypsum addition to concrete on the mechanical properties. The results showed that when gypsum was added as a activator with the content of 20% S95 slag in the C80 steam curing concrete, 7d steam curing compressive strength was 88.7MPa, whereas, 5.0% I grade fly ash and 15.0% S95 slag with 2.0% gypsum were added in the concrete, the compressive strength was the best, in which 7d steam curing compressive strength was 91.5MPa. |
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| Keywords: | high strength concrete steam curing compressive strength |
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