BP Network Based Mix Proportion Design of Self-Compacting Concrete

2007 ◽  
Author(s):  
Jialin Ji ◽  
Qingxin Zhao ◽  
Guoliang Yan ◽  
Huijian Li
Keyword(s):  
Self Compacting Concrete ◽  
Bp Network ◽  
Mix Proportion

C80 Early Strength Micro Expansion of Steel Tube Reinforced Concrete Research

2015 ◽  
Vol 1119 ◽  
pp. 752-755
Author(s):  
Chang Zheng Sun ◽  
Zheng Wang
Keyword(s):  
High Performance ◽  
Raw Materials ◽  
Influence Factors ◽  
High Strength ◽  
Steel Tube ◽  
Strength Analysis ◽  
Self Compacting Concrete ◽  
Mix Proportion ◽  
Early Strength ◽  
Working Performance

Optimization of mix proportion parameter ，Using ordinary raw materials makes a C80 high performance self-compacting concrete;By joining a homemade perceptual expansion agent, significantly improve the early strength of concrete and effective to solve the high strength of self-compacting concrete caused by gelled material consumption big contraction;Further study on the working performance of high-strength self-compacting concrete, age strength, analysis the influence factors of concrete are discussed.

Experimental Study on Cracking Property of Self-Compacting Concrete

2008 ◽  
Vol 400-402 ◽  
pp. 433-438
Author(s):  
Nan Guo Jin ◽  
Xian Yu Jin ◽  
Xiang Lin Gu
Keyword(s):  
Experimental Study ◽  
Tensile Strain ◽  
Experimental Results ◽  
Flexural Test ◽  
Self Compacting Concrete ◽  
Free Shrinkage ◽  
Normal Concrete ◽  
Strength Grade ◽  
Mix Proportion ◽  
Key Parameter

Taking free shrinkage as the key parameter in evaluating cracking of concrete, the cracking properties of self-compacting concrete with strength grade of C35 and C50 were investigated based on ring and slab restraint tests. Meanwhile, the ultimate tensile strain of self-compacting concrete was studied by using flexural test. Experimental results show that the shrinkage of self-compacting concrete is lower than that of normal concrete. Self-compacting concrete cracks later than normal concrete with the same strength grade. Although the ultimate flexural tensile strains of self-compacting concrete in 7 d and 28 d are a little bit lower than that of the normal concrete, it can still be concluded from the research that the cracking property of self-compacting concrete can be greatly improved by using proper mix proportion.

Shrinkage Cracking Resistance Property of Self-Compacting Concrete

2011 ◽  
Vol 250-253 ◽  
pp. 383-387
Author(s):  
Xian Yu Jin ◽  
Chuan Qing Fu ◽  
Nan Guo Jin ◽  
Fan Ge ◽  
Yi Bing Zhao
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Design Theory ◽  
Test Results ◽  
Self Compacting Concrete ◽  
Cracking Resistance ◽  
Shrinkage Cracking ◽  
Resistance Property ◽  
Mix Proportion

Based on the project requirement of a nuclear power plant, using the method of free shrinkage test and ring cracking test, shrinkage cracking resistance property of grade C35 and C50 self-compacting concrete (SCC) with the optimized mix proportion was studied. The test results between SCC and ordinary vibrated concrete afforded by nuclear power plant project with the same grade were compared. The results indicated that the shrinkage cracking resistance property of SCC is prior to the ordinary vibrated concrete with the same strength grade. This kind of SCC can satisfy the nuclear power plant project, also the test results can be a reference of SCC design theory.

Experimental Research on Compressive Strength of Self-Compacting Concrete with Recycled Coarse Aggregates

2011 ◽  
Vol 306-307 ◽  
pp. 1084-1087 ◽  
Author(s):  
Jing Li ◽  
Xian Feng Qu ◽  
Lin Fu Wang ◽  
Chong Qing Zhu ◽  
Juan Li
Keyword(s):  
Compressive Strength ◽  
Design Method ◽  
Self Compacting Concrete ◽  
Longitudinal Splitting ◽  
Coarse Aggregates ◽  
Hydraulic Concrete ◽  
Mix Proportion ◽  
Splitting Failure ◽  
Concrete Blocks ◽  
Waste Solid

In order to study cubic compressive strength of recycled coarse aggregates-filled concrete systematically, recycled coarse aggregates with the particle size from 50 to150mm are made from waste solid contents, which are artificially broken from abandoned rubble and concrete blocks. Based on the mix proportion design method of ordinary concrete and test code for hydraulic concrete, 3 groups of recycled coarse aggregates-filled concrete cubic specimens were prepared and the compressive strength of the specimens were tested. The results showed that basic failure pattern of recycled coarse aggregates-filled concrete are longitudinal splitting failure, and that cubic compressive strength is higher than that of self-compacting concrete.

scholarly journals Research Status and Development Trend of Self-Compacting Concrete technology

2020 ◽  
Vol 198 ◽  
pp. 03001
Author(s):  
Wenxiang Ning ◽  
Qiang He ◽  
Jian Gong
Keyword(s):  
Performance Testing ◽  
Development Trend ◽  
Research Process ◽  
Self Compacting Concrete ◽  
Concrete Technology ◽  
Research Status ◽  
Mix Proportion ◽  
Working Performance ◽  
Definition Of ◽  
Preliminary Application

The definition of self-compacting concrete is briefly introduced. The research process of self-compacting concrete in various countries in the world is studied, from the initial test to the final formation of the preliminary application specification, and it is constantly improved. The mix proportion design, working performance, testing method, application and research status of self-compacting concrete are discussed in detail, and the problems to be solved in the future and the development prospect are prospected

Optimization of Mix Proportion of Self-compacting Concrete Based on Single Fluid Model

2021 ◽  
Author(s):  
Xiuzhi Zhang ◽  
Chong Zhang ◽  
Mengdi Bi ◽  
Haibo Yang ◽  
Hailong Sun ◽  
...  
Keyword(s):  
Fluid Model ◽  
Self Compacting Concrete ◽  
Mix Proportion

scholarly journals Experimental study of optimal self compacting concrete with spent foundry sand as partial replacement for M-sand using Taguchi approach

2016 ◽  
Vol 11 (1) ◽  
pp. 119-130
Author(s):  
D.B. Nirmala ◽  
S. Raviraj
Keyword(s):  
Partial Replacement ◽  
Taguchi Approach ◽  
Test Results ◽  
Self Compacting Concrete ◽  
Foundry Sand ◽  
Control Factors ◽  
Technical Requirements ◽  
Mix Proportion ◽  
Super Plasticizer ◽  
Optimal Mix

Abstract This paper presents the application of Taguchi approach to obtain optimal mix proportion for Self Compacting Concrete (SCC) containing spent foundry sand and M-sand. Spent foundry sand is used as a partial replacement for M-sand. The SCC mix has seven control factors namely, Coarse aggregate, M-sand with Spent Foundry sand, Cement, Fly ash, Water, Super plasticizer and Viscosity modifying agent. Modified Nan Su method is used to proportion the initial SCC mix. L18 (21×37) Orthogonal Arrays (OA) with the seven control factors having 3 levels is used in Taguchi approach which resulted in 18 SCC mix proportions. All mixtures are extensively tested both in fresh and hardened states to verify whether they meet the practical and technical requirements of SCC. The quality characteristics considering “Nominal the better” situation is applied to the test results to arrive at the optimal SCC mix proportion. Test results indicate that the optimal mix satisfies the requirements of fresh and hardened properties of SCC. The study reveals the feasibility of using spent foundry sand as a partial replacement of M-sand in SCC and also that Taguchi method is a reliable tool to arrive at optimal mix proportion of SCC.

Experimental Study of Composite High Strength Self-Compacting Concrete

2017 ◽  
Vol 865 ◽  
pp. 289-294
Author(s):  
Xi Ri Kang ◽  
Guang Xiu Fang
Keyword(s):  
Compressive Strength ◽  
Engineering Application ◽  
High Strength ◽  
Cementitious Material ◽  
Self Compacting Concrete ◽  
Design Strength ◽  
Mix Proportion ◽  
Optimal Mix ◽  
Axial Compressive Strength ◽  
Compressive Strength Of Concrete

This test uses polycarboxylate superplasticizer by adding 15% quantitative fly ash, 10%, 15%, 20% of slag, and 5%,7.5%, 10% of silica fume of the total amount of the cementitious material to be an equivalent replacement for cement. Ordinary materials were used to make the C70 high strength self-compacting concrete. The concrete slump, expansion degree, and the axial compressive strength of concrete were studied. Through testing, the mix proportion of each group of concrete slump was determined to be above 250mm. And the expansion degree to be above 550mm. The axial compressive strength satisfied the design strength value. At the same time, the optimal mix ratio was proposed. And the economic performance of each group was analyzed. There are references for a similar experimental design and engineering application.

Influence of Sand Ratio on the Fluidity Properties of SCC in CRTS III Type Track System

2012 ◽  
Vol 629 ◽  
pp. 466-470 ◽  
Author(s):  
Hai Peng Gu ◽  
Gu Hua Li ◽  
Xiao Hui Zeng ◽  
Jian Qiang Cheng
Keyword(s):  
Test Results ◽  
Self Compacting Concrete ◽  
Optimum Range ◽  
Mix Proportion ◽  
China Academy ◽  
Track System ◽  
Packing Layer

In order to prepare SCC (self-compacting concrete) which is used as the packing layer in CRTS III type track system this paper primary researched the influence of sand ratio on its performance through experiments of the design of mix proportion. Test results show that when sand ratio is too small, the fluidity of SCC will be bad and the concrete will generate segregation and weeping. If sand ratio is too great, the workability of SCC will not be good either, but segregation will not occur again. The optimum range of sand ratio is 0.56 to 0.58 in this paper, while the range proposed by China Academy of Railway Sciences is 0.50 to 0.55.

Experiment for the Mix Proportion Design of Green and Self-Compacting C40 Concrete

2013 ◽  
Vol 634-638 ◽  
pp. 2680-2683
Author(s):  
Sheng Ju Zhang ◽  
Xin Gang Wang ◽  
Su Rui Wang
Keyword(s):  
Construction Industry ◽  
Coarse Aggregate ◽  
Volume Fraction ◽  
Raw Materials ◽  
The Self ◽  
Mineral Admixtures ◽  
Special Significance ◽  
Self Compacting Concrete ◽  
Green Concrete ◽  
Mix Proportion

The self-compacting concrete is playing more and more important role in the construction industry with the advantages of greater mobility, better stability, and excellent character of filling the gap through capacity. There are different raw materials and construction conditions in each region, so, the research and development of the self-compacting concrete has a special significance according to the specific circumstances of each region. In this study, the parameters of the volume of coarse aggregate, mortar volume, the volume fraction of the sand, the mineral admixtures ash and cementatious coefficient were selected and calculated, and the C40 self-compacting green concrete was successfully configured.

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