Research on the Detection Countermeasures of Building Concrete Raw Materials
Bogdan Gradinaru （ Gheorghe Asachi Tech Univ Iasi, Fac Civil Engn & Bldg Serv, Iasi 700050, Romania ）
https://doi.org/10.37155/2717-526X-0302-5Abstract
The quality of concrete directly determines the quality, service life and safety of the building, so it is necessary to use concrete materials of excellent quality and performance in the building construction process. In addition to the production process of concrete, which directly affects its performance, the influence of raw materials is very significant. Nowadays, the production process has become more standardised and mechanised, so special attention needs to be paid to the influence of raw materials in the process of making concrete.Based on this, the article will focus on the analysis of countermeasures for the testing of raw materials for construction concrete. By the testing of raw materials, the selection of more suitable raw materials for making concrete, helps to improve the strength and quality of the concrete.The article begins with an analysis of the key points of concrete raw material testing, analysing the considerations in the selection and testing of fly ash, water, stone, cement, sand and admixtures; then analyses several methods of testing raw materials for construction concrete, such as backfill method, ultra-deep rebound synthesis method, post-loading pull-out method and core drilling method, which have their own advantages and disadvantages and need to be selected reasonably according to the testing requirements; finally proposes a few measures to increase the quality of construction concrete.
Keywords
Concrete; Raw materials; TestingFull Text
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[2].C. Chen, F. He & X. Zhou. Relationship between the Properties of Recycled Aggregates and the Strength Grade of Virgin Concrete. Journal of Xiamen Institute of Technology,2012,20(2):76-79.
[3].L. Tong. Study on the Axial Compression Performance of CFRP-constrained Steel-concrete Rectangular Short Columns with Different Concrete Strength Levels. Hefei:Hefei University of Technology,2017.
[4].Z. Dai. Calculation of the Modulus of Fineness of Sand. Concrete,1991(06):23-26.
[5].B. Wang. Analysis of the Quality Control of Concrete Raw Materials during the Construction of Road and Bridge. Transportation Research,2013(14):53-56.
[6].F. Wang. Research on the Application of Grade III Fly Ash in C30 Concrete. Ningxia:Ningxia University,2015.
[7].F. He, D. Zhang & H. Chai. Experimental Study on the Construction of Di-ash Subgrade with High Sulphur and High Burnt Loss Fly Ash. Highway Engineering,2007(05):194-196.
[8].A. Yi. Experimental Study on Performance Testing of Fly Ash. Construction Supervision, Inspection and Costing, 2010(04):48-50.
[9].C. Wang. Discussion on Pumping of Concrete with Fine Sand (or Extra Fine Sand) as Aggregate. Shihezi Science and Technology,2009,(1):35-36.
[10].J. Xiao, J. Li & Z. Sun. Study on Compressive Strength of Recycled Concrete by Rebound Method. Sichuan Construction Science Research, 2004,30(004):51-54.
[11].Q. Yuan, C. Deng, & X. Hu. Application of Ultrasonic-rebound Synthesis Method in Non-destructive Testing and Strength Prediction of Rocks. Hydropower Energy Science, 2013,031(009):92-94.
[12].T. Yu, L. Geng, H. Zhang, et al. Effect of Coarse Aggregate Particle Size on the Accuracy of Concrete Strength Testing by Post-assembly Pull-out Method. Chinese and Foreign Highways, 2010(01):238-241.
[13].Technical Regulations for Testing the Strength of Concrete by Drilling Core Method. Engineering Quality, 2002,(3):39-41.
Copyright © 2021 Bogdan Gradinaru
Publishing time:2021-12-25
This work is licensed under a Creative Commons Attribution 4.0 International License
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