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Autogenous Shrinkage in High Performance Concrete with Chemical Admixtures
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Durability in High Performance Concrete have resulted in the development of admixtures to mitigate several concrete deterioration mechanisms. Due to the low water/binder, HPC enables autogenous shrinkage that could lead to cracks at early ages. Superabsorbent polymers, shrinkage reducing admixtures and corrosion inhibitor based on calcium nitrite were used in HPC with silica fume to evaluate autogenous shrinkage. SAP was added with an amount of intenal curing water determined by the modification proposed by Jensen to the Power’s Model. Results showed that admixtures could improve or aggravate autogenous shrinkage.
Trans Tech Publications, Ltd.
Title: Autogenous Shrinkage in High Performance Concrete with Chemical Admixtures
Description:
Durability in High Performance Concrete have resulted in the development of admixtures to mitigate several concrete deterioration mechanisms.
Due to the low water/binder, HPC enables autogenous shrinkage that could lead to cracks at early ages.
Superabsorbent polymers, shrinkage reducing admixtures and corrosion inhibitor based on calcium nitrite were used in HPC with silica fume to evaluate autogenous shrinkage.
SAP was added with an amount of intenal curing water determined by the modification proposed by Jensen to the Power’s Model.
Results showed that admixtures could improve or aggravate autogenous shrinkage.
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