Feasibility study of using wash water from ready mixed concrete plant and synthetic wastewater based on tap water with different total dissolved solid to produce self-compacting concrete

2021 ◽  
pp. 102781
Author(s):  
Bahraman Mohanna ◽  
Gholamreza Asadollahfardi ◽  
Amir Masoud Salehi ◽  
Behnaz Yahyaei
Keyword(s):  
Feasibility Study ◽  
Tap Water ◽  
Wash Water ◽  
Synthetic Wastewater ◽  
Self Compacting Concrete ◽  
Total Dissolved Solid ◽  
Ready Mixed Concrete ◽  
Mixed Concrete

Waste wash water recycling in ready-mixed concrete plants

2001 ◽  
Vol 31 (3) ◽  
pp. 485-489 ◽  
Author(s):  
Franco Sandrolini ◽  
Elisa Franzoni
Keyword(s):  
Wash Water ◽  
Water Recycling ◽  
Ready Mixed Concrete ◽  
Mixed Concrete

Advanced online water content measurement for self-compacting concrete production in ready-mixed concrete plants

2016 ◽  
Vol 112 ◽  
pp. 570-580 ◽  
Author(s):  
Hai-Thong Ngo ◽  
El-Hadj Kadri ◽  
Abdelhak Kaci ◽  
Tien-Tung Ngo ◽  
Alain Trudel ◽  
...  
Keyword(s):  
Water Content ◽  
Self Compacting Concrete ◽  
Content Measurement ◽  
Concrete Production ◽  
Ready Mixed Concrete ◽  
Mixed Concrete

scholarly journals The Using of Concrete Wash Water from Ready Mixed Concrete Plants in Cement Systems

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2483
Author(s):  
Danutė Vaičiukynienė ◽  
Aras Kantautas ◽  
Simona Tučkutė ◽  
Fallon Manhanga ◽  
Eugenijus Janavičius ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fresh Concrete ◽  
Negative Impact ◽  
Tap Water ◽  
Pozzolanic Reaction ◽  
Wash Water ◽  
Complex Chemical ◽  
Concrete Mixtures ◽  
Complex Chemical Reactions ◽  
Ready Mixed Concrete

Concrete plants accumulate large amounts of concrete wash water. This water, which pH is highly alkaline, has a negative impact on the environment. Its reuse in fresh concrete slightly reduces its mechanical properties. The combination of concrete wash water and zeolitic by-product led to an increase of 4.6% in the compressive strength at 7 days hydration and up to 30% at 28 days hydration. The same combination led to the denser microstructure compared to the samples made with concrete wash water. This could be explained by the pozzolanic reaction of the zeolitic by-product. The complex chemical reactions of cement, zeolitic by-product, and fines presented in the concrete wash water occurred. Therefore, it was suggested the reusing method of concrete wash water together with zeolitic by-product in the fresh concrete mixtures by substituting some amount of tap water with concrete wash water. In this way, the consumption of tap water is possible to reduce in cement systems.

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