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EFFECTIVE APPLICATIONS OF RETARDING ADMIXTURE TO IMPROVE THE

PERFORMANCE OF CONCRETE IN HOT WEATHER

 Syed Khaleeq Ahmad

CONCLUSIONS    

Concreting in hot weather is a challenge to the construction industry. On the basis of the results obtained in this study there is a clear indication of improvement in the properties of fresh and hardened concrete under hot weather conditions. This study provides a basis for producing economical concrete mixes with a high workability, high strength and low water-cement ratio. The addition of Pozzolith will also reduce the water required for the curing of concrete. The retardation of the initial setting will play an important role in placing the concrete as well as the transport of concrete from the ready-mix plant to the construction site. There will be great saving of precious potable water, which is in high demand in countries with high temperatures for most of the year. It will help to prevent the cold joints. It can be predicted that the chances of corrosion will also be reduced, as the water retained in the core will be small.

Figure 1 Effect on Workability of concrete

 

Figure 2 Effect on water absorption

 

Figure 3 Effect on compressive strength

Figure 4 Effect on flexural strength

Abstract   Introduction   Methodology    Result Discussion   Conclusions   References

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Last updated on Thursday November 29, 2012