scholarly journals A Study for Improving Properties of Antiwashout Underwater Concrete Mixed with Mineral Admixtures

2002 ◽  
Vol 14 (3) ◽  
pp. 409-419 ◽  
Keyword(s):  
Mineral Admixtures ◽  
Underwater Concrete

Study on durability of non-dispersible concrete in seawater environment

2019 ◽  
Vol 11 (3) ◽  
pp. 443-452
Author(s):  
Wu Huijun ◽  
Zhan Diao ◽  
Kaizuo Fan
Keyword(s):  
Chloride Ion ◽  
Mineral Admixtures ◽  
Engineering Practice ◽  
Durability Test ◽  
Test Analysis ◽  
Content Type ◽  
Concrete Mixtures ◽  
Seawater Environment ◽  
Underwater Concrete ◽  
Durability Of Concrete

Purpose The purpose of this paper is to focus on the durability of underwater non-dispersible concrete in seawater environment. Design/methodology/approach In this paper, ten groups of underwater non-dispersible concrete mixtures were designed, and the anti-dispersibility and fluidity of the mixtures were tested. Findings The durability test analysis shows that different pouring methods have different effects on the durability of concrete. The durability of concrete poured on land is better than that poured in water. Different mineral admixtures have different effects on the durability of concrete: the frost resistance of the underwater non-dispersible concrete specimens with silica fume is the best; the impermeability and chloride ion permeability of the non-dispersible underwater concrete specimens with waterproofing agent are the best; and the alternation of wetting and drying has adverse effects on the durability indexes of the non-dispersible underwater concrete. Originality/value The durability of underwater non-dispersible concrete is tested and the results can be used for reference in engineering practice.

scholarly journals Effect of Mineral Admixtures on the Performance of Low-Quality Recycled Aggregate Concrete

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 596
Author(s):  
Yasuhiro Dosho
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Mineral Admixtures ◽  
Structural Concrete ◽  
Aggregate Concrete ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

To improve the application of low-quality aggregates in structural concrete, this study investigated the effect of multi-purpose mineral admixtures, such as fly ash and ground granulated blast-furnace slag, on the performance of concrete. Accordingly, the primary performance of low-quality recycled aggregate concrete could be improved by varying the replacement ratio of the recycled aggregate and using appropriate mineral admixtures such as fly ash and ground granulated blast-furnace slag. The results show the potential for the use of low-quality aggregate in structural concrete.

State of art review on self compacting concrete using mineral admixtures

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
S. Dey ◽  
V. V. Praveen Kumar ◽  
K. R. Goud ◽  
S. K. J. Basha
Keyword(s):  
Mineral Admixtures ◽  
Self Compacting Concrete ◽  
State Of Art
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