Development of modified reactive powder concrete with compressive strength of 110-120 MPa

机译：抗压强度为110-120 MPa的改性活性粉末混凝土的研制

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

Reactive Powder Concrete (RPC) is a new generation ultra high strength concrete that was developed by scientists at Bouygues in France. RPC has a typical compressive strength of 200 MPa and a high flex-ural strength (50 MPa) if steel fibres are incorporated. RPC mix design is characterized by high cement and silica fume content, high superplasticizer dosage and a very low water binder ratio. RPC does not include any coarse aggregate and the maximum size of fine sand is limited to 0.4-0.6 mm. During its development, the researchers considered coarse aggregate as the weakest link in achieving ultra high strength and hence they excluded it. The resulting mix is homogeneous and the ultra high strength of RPC is attributed to this homogeneity. This paper presents a study of RPC modified by the addition of a strong basalt coarse aggregate of nominal sizes 4 mm, 7 mm and 10 mm. A reference RPC mix was also produced to compare the effect of adding coarse aggregate. Results suggest that adding coarse aggregate does not reduce the compressive strength of RPC. The influence of heat treatment is also reported.

机译：活性粉末混凝土（RPC）是由法国Bouygues的科学家开发的新一代超高强度混凝土。如果掺入钢纤维，则RPC的典型抗压强度为200 MPa，弯曲强度较高（50 MPa）。 RPC混合料的设计特点是水泥和硅粉含量高，高效减水剂的用量高，水结合率低。 RPC不包含任何粗骨料，细砂的最大尺寸限制为0.4-0.6 mm。在其开发过程中，研究人员认为粗骨料是获得超高强度的最薄弱环节，因此他们将其排除在外。所得混合物是均匀的，并且RPC的超高强度归因于这种均匀性。本文介绍了通过添加标称尺寸为4 mm，7 mm和10 mm的强玄武岩粗骨料改性的RPC的研究。还制作了参考RPC混合物以比较添加粗骨料的效果。结果表明，添加粗骨料不会降低RPC的抗压强度。还报道了热处理的影响。

著录项

来源
《International Structural Engineering and Construction Conference(ISEC-03); 20050920-23; Shunan(JP)》|2005年|P.763-767|共5页
会议地点 Shunan(JP)
作者
Syed M.S. Rahman; Tom C.K. Molyneaux; Indubhushan Patnaikuni;
展开▼
作者单位

School of Civil and Chemical Engineering, RMIT University, Australia;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类混凝土结构、钢筋混凝土结构;
关键词

相似文献

外文文献
中文文献
专利

1. Effect of silica fume/binder ratio on compressive strength development of reactive powder concrete under two curing systems [J] . Mohammed Abed, Mohammed Nasr, Zaid Hasan MATEC Web of Conferences . 2018,第期

机译：二氧化硅烟气/粘合剂比对两种固化系统反应粉混凝土压压强度发展的影响
2. Experimental Investigation on Compressive Strength of Recycled Reactive Powder Concrete Containing Glass Powder and Rice Husk Ash [J] . Belachew Asteray, Walter Oyawa, Stanley Shitote Journal of Civil Engineering Research . 2017,第4期

机译：含玻璃粉和稻壳灰的再生活性粉末混凝土抗压强度的试验研究
3. Experimental Investigation on Compressive Strength of Recycled Reactive Powder Concrete Containing Glass Powder and Rice Husk Ash [J] . Belachew Asteray, Walter Oyawa, Stanley Shitote Journal of civil engineering research . 2017,第4期

机译：含玻璃粉和稻壳灰的再生活性粉末混凝土抗压强度的试验研究
4. Development and Construction Record on High-Strength Concrete with the Compressive Strength Exceeding 150MPa [C] . H. Jinnai, S. Kuroiwa, S. Watanabe, SP-228; International Symposium on Utilization of High-Strength/High-Performance Concrete vol.2; 20050620-24; Washington,DC(US) . 2005

机译：抗压强度超过150MPa的高强度混凝土的开发与施工记录
5. Development of high performance concrete composites using Class F fly ash and PCC bottom ash, and a statistical model to predict compressive strength of similar concrete composites. [D] . Puri, Rajnish. 2015

机译：使用F级粉煤灰和PCC底灰开发高性能混凝土复合材料，并建立一个统计模型来预测类似混凝土复合材料的抗压强度。
6. Investigation of the Match Relation between Steel Fiber and High-Strength Concrete Matrix in Reactive Powder Concrete [O] . Guangyao Yang, Jiangxiong Wei, Qijun Yu, 2019

机译：活性粉末混凝土中钢纤维与高强混凝土基体匹配关系的研究
7. Mechanical properties of various concrete after high temperature exposure Mechanical property of various types of concrete after high temperature exposure is investigated. Considering compressive strength requirement for a vertical element in high rise building, concrete specimens with various design strengths of 35, 80, 100, and 150 MPa were tested. Particularly, the influence of incorporated steel fiber on fire resistance is of interest in this study. Experimental results show that the fire resistance depends on the design strength and steel fiber content. Normal strength concrete (NSC) of a design strength of 35 MPa or high performance concrete (HPC) of 80-100 MPa does not spall when exposed to 100-400 °C of temperature. However, an explosive spalling occurs at 300 °C when the HPCs contain 1 vol. of steel fiber. Ultra-high performance concrete (UHPC) of a design strength of 150 MPa and 1.5 vol. of steel fiber also shows dramatic spalling at 300 °C. The experimental results found in this study can contribute to a better understanding of the behaviors of HPC and UHPC under fire and the role of steel fiber on the fire resistance. [O] . 2017

机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。

Development of modified reactive powder concrete with compressive strength of 110-120 MPa

摘要

著录项

相似文献

相关主题

期刊订阅