Experimental Study on Producing Concrete Hollow Block with Mining Slag

2011 ◽  
Vol 261-263 ◽  
pp. 820-823 ◽  
Author(s):  
Yu Ze Tian
Keyword(s):  
Experimental Study ◽  
Mine Tailings ◽  
Coarse Aggregate ◽  
National Standards ◽  
Iron And Steel ◽  
Mix Proportion ◽  
Iron Mine ◽  
Sample Test ◽  
Waste Rocks ◽  
Hollow Block

The experiments of compressive strength about maix proportion of concrete are repeatedly done, adopting orthogonal experimental method. In this experiment, dry separation waste rocks and mine tailings in mining slag of Qidashan Iron Mine which is subsidiary company of Anshan Iron and Steel Corporation are used instead of traditional fine and coarse aggregate concretes. Then the optimized mix proportion is determined to make the concrete small hollow blocks. Sample test shows that it is feasible to make load bearing concrete small hollow blocks which can meet national standards.

Experimental Study on Aerated Concrete Produced by Iron Tailings

2011 ◽  
Vol 250-253 ◽  
pp. 853-856 ◽  
Author(s):  
Yu Ze Tian
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Experimental Method ◽  
Concrete Block ◽  
National Standards ◽  
Caustic Alkali ◽  
Iron And Steel ◽  
Mix Proportion ◽  
Optimal Mix ◽  
Aerated Concrete

The non-autoclaved aerated concrete block with greater than 7.5Mpa compressive strength is produced by using iron tailings, lime, aluminum powder, caustic alkali, water, cement and gypsum in the laboratory after the experimental study on the property of iron tailings produced by Anshan Iron and Steel Group. The optimal mix proportion is finally determined by adopting orthogonal experimental method, the evaluating indicator is compressive strength. Aerated concrete block that is made from iron tailing is trial produced according to the national standards, and then its strength is determined by sample examination.

Investigation of Drying Shrinkage of Concrete Prepared with Iron Mine Tailings

2011 ◽  
Vol 477 ◽  
pp. 37-41 ◽  
Author(s):  
Xiao Xin Feng ◽  
Xue Li Xi ◽  
Ji Wei Cai ◽  
Hong Jun Chai ◽  
Yu Zeng Song
Keyword(s):  
Natural Condition ◽  
Mine Tailings ◽  
Coarse Aggregate ◽  
Drying Shrinkage ◽  
Crushed Stone ◽  
Fine Aggregate ◽  
Natural Sand ◽  
Iron Mine

Concretes of C30 and C60 were prepared with iron mine tailings as fine aggregate and coarse aggregate and with natural sand and common crushed stone separately. The drying shrinkage of concretes cured under the natural condition in the laboratory was tested. The results showed that whether C30 or C60 the drying shrinkage of concrete prepared with iron mine tailings was a little smaller than that of concrete with natural sand and common crushed stone. It was also found that whether the concrete with iron mine tailings or the concrete with natural sand and common crushed stone the drying shrinkage of C60 concrete was larger than that of C30 concrete.

Experimental Study of Concrete By Partial Replacement of Coarse Aggregate By E-Waste

2018 ◽  
pp. 163-167
Author(s):  
A. C. Umare ◽  
Akshay Tak ◽  
Amrut Talekar ◽  
Akshay Waghmare ◽  
Ajinkya Todkar ◽  
...  
Keyword(s):  
Experimental Study ◽  
Coarse Aggregate ◽  
Partial Replacement

scholarly journals Experimental Study on Concrete With Partial Replacement of Coarse Aggregate with Cashew Shells

2021 ◽  
Vol 1770 (1) ◽  
pp. 012036
Author(s):  
B Priyadharshini ◽  
R Nirmala ◽  
Eshanthini ◽  
C Manoj Kumaar
Keyword(s):  
Experimental Study ◽  
Coarse Aggregate ◽  
Partial Replacement

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.

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