INTERNAL CURING OF HIGHPERFORMANCE CONCRETE

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Internal curing of high-performance concrete with pre ...

2008-6-1  The effectiveness of internal curing (IC) to reduce autogenous shrinkage cracking in high-performance concrete (HPC) was investigated using different levels of internal curing on four pairs of large-size prismatic HPC specimens tested simultaneously under free and restrained shrinkage.

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Internal curing of high-performance concrete with pre ...

The effectiveness of internal curing (IC) to reduce autogenous shrinkage cracking in high-performance concrete (HPC) was investigated using different levels of internal curing on four pairs of large-size prismatic HPC specimens tested simultaneously under free and restrained shrinkage.

Get price

Internal curing of high-performance concrete for bridge decks.

2021-7-27  High performance concrete (HPC) provides a long lasting, durable concrete that is typically used in bridge decks due to its low permeability, high abrasion resistance, freeze-thaw resistance and strength. However, this type of concrete is highly susceptible to the deleterious effects of both autogenous and drying shrinkage.

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Internal Curing of High-Performance Blended Cement

portland cement hydration, these blended cements may have an increased demand for additional curing water. When such water cannot be supplied efficiently by external curing, internal curing becomes necessary, if the maintenance of saturated hydration conditions in the blended cement paste is desired.

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Internal Curing of High-Performance Blended Cement Mortars

2007-7-1  In this paper, the internal curing of three different high-performance blended cement mortars is evaluated with respect to measured autogenous deformation and compressive strength development. Internal curing is particularly beneficial for the mortars containing silica fume or slag blended cements.

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INTERNAL CURING AND MICROSTRUCTURE OF ... -

2007-7-23  internal curing is observed to produce a much denser, more homogeneous cement paste microstructure, with fewer unhydrated cement particles and fewer and smaller empty pores. In the mortar with internal curing, in the figure at the bottom left of Fig. 2, there is excellent

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Mechanical properties and durability of high-performance ...

2021-6-21  According to the American Concrete Institute (ACI) standards, the internal curing of concrete can be defined as “providing water throughout a freshly placed cementitious mixture using reservoirs, by pre-wetted lightweight aggregates that readily release water as required for the hydration process or to substitute moisture lost by evaporation or self-desiccation.”

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Use of porous ceramic waste aggregates for internal curing ...

2009-5-1  Internal curing has become extensively used to reduce autogenous shrinkage and consequently mitigate the high risk of early age cracking of high-performance concrete (HPC). This paper investigates the efficiency of internal wet curing provided by a new type of aggregate, "recycled waste porous ceramic coarse aggregates" (PCCA).

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PREVENTING AUTOGENOUS SHRINKAGE OF HIGH-PERFORMANCE ...

The effect of internal curing on the structural behaviour of large high-performance concrete specimens having different amounts of pre-soaked porous lightweight aggregate was investigated. The results show that the use of lightweight aggregate in high-performance concrete can effectively reduce autogenous shrinkage through improved hydration of ...

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Permeability of high-performance concrete incorporating ...

2013-7-6  for internal curing reduced unit weight, compressive strength and elastic modulus of the concrete. Comparing the LWAs of different sizes for internal curing, finer particles were more efficient in reducing the shrinkage and generally resulted in less reduction in the unit weight, compressive strength, and elastic modulus. However, the

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Internal curing of high-performance concrete for bridge decks.

2021-7-27  High performance concrete (HPC) provides a long lasting, durable concrete that is typically used in bridge decks due to its low permeability, high abrasion resistance, freeze-thaw resistance and strength. However, this type of concrete is highly susceptible to the deleterious effects of both autogenous and drying shrinkage.

Get price

(PDF) Internal Curing of High-Performance Blended Cement ...

Internal curing of concrete by adding water soluble material can hold the mixing water against evaporation and further enhance the hydration of cement. The chemical admixture namely polyethylene ...

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Internal Curing of High-Performance Blended Cement

portland cement hydration, these blended cements may have an increased demand for additional curing water. When such water cannot be supplied efficiently by external curing, internal curing becomes necessary, if the maintenance of saturated hydration conditions in the blended cement paste is desired.

Get price

(PDF) Internal Curing of High-Performance Blended Cement ...

ACI MATERIALS JOURNAL TECHNICAL PAPER Title no. 104-M46 Internal Curing of High-Performance Blended Cement Mortars by Dale P. Bentz In the twenty-first century, most high-performance concretes, and ubiquitous throughout the concrete industry. Blending many other ordinary concretes, are now based on blended cements materials such as silica fumes ...

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Internal Curing of High-Performance Blended Cement Mortars

2007-7-1  Title: Internal Curing of High-Performance Blended Cement Mortars Author(s): Dale P. Bentz Publication: Materials Journal Volume: 104 Issue: 4 Appears on pages(s): 408-414 Keywords: curing; high performance; mortars Date: 7/1/2007 Abstract: In the twenty-first century, most high-performance concretes, and many other ordinary concretes, are now based on blended cements that contain silica

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Internal Curing and Microstructure of High-Performance ...

Internal curing of concrete is recognized as an important and powerful tool in ensuring full hydration of cementitious materials, thus resulting in maximum performance of the concrete (Bentz and ...

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Research Progress of Internal Curing in High-Performance ...

Article. Research Progress of Internal Curing in High-Performance Concrete. January 2018; Hans Journal of Civil Engineering 07(01):1-7

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Curing of high-performance concrete: phase I study

2016-9-20  • Develop a more comprehensive understanding of the effects of internal curing temperature, and develop guidelines for curing high-performance concrete based on sound technical knowledge. One of the first curing-related studies in the NIST program established the applicability of the maturity method to high-performance concrete (Carino et al ...

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The Influence of Lightweight Aggregate on Internal

2020-10-13  Protected paste volume in concrete—Extension to internal curing using saturated lightweight fine aggregate. Cement and Concrete Research, 29(11), 1863-1867. 2 Jensen, O.M. Hansen P.F. (2001). Water-entrained cement-based materials I. Principles and theoretical background. Cement and Concrete Research, 31(4), 647-654.

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Internal Curing: A 2010 State-of-the- Art Review

2011-12-21  The American Concrete Institute in 2010 defined internal curing as “supplying water throughout a freshly placed cementitious mixture using reservoirs, via pre-wetted lightweight aggregates, that readily release water as needed for hydration or to replace moisture lost through

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Internal Curing of High-performance Concrete with Pre ...

Internal Curing of High-performance Concrete with Pre-soaked Fine Lightweight Aggregate for Prevention of Autogenous Shrinkage Cracking. The effectiveness of internal curing (IC) to reduce autogenous shrinkage cracking in high-performance concrete (HPC) was investigated using different levels of internal curing on 4 pairs of large-size prismatic HPC specimens tested simultaneously under free ...

Get price

(PDF) Internal Curing of High-Performance Blended Cement ...

ACI MATERIALS JOURNAL TECHNICAL PAPER Title no. 104-M46 Internal Curing of High-Performance Blended Cement Mortars by Dale P. Bentz In the twenty-first century, most high-performance concretes, and ubiquitous throughout the concrete industry. Blending many other ordinary concretes, are now based on blended cements materials such as silica fumes ...

Get price

Novel microcapsules for internal curing of high ...

Conventional internal curing materials for high-performance cementitious system cannot easily have artificial modifications, such that the curing effect is difficult to control during the process. In this study, a novel microcapsule is proposed for controlled internal curing of cement-based material

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Internal Curing and Microstructure of High-Performance ...

Internal curing of concrete is recognized as an important and powerful tool in ensuring full hydration of cementitious materials, thus resulting in maximum performance of the concrete (Bentz and ...

Get price

Novel microcapsules for internal curing of high ...

2020-5-20  Conventional internal curing materials for high-performance cementitious system cannot easily have artificial modifications, such that the curing effect is difficult to control during the process.

Get price

Curing of high-performance concrete: phase I study

2016-9-20  • Develop a more comprehensive understanding of the effects of internal curing temperature, and develop guidelines for curing high-performance concrete based on sound technical knowledge. One of the first curing-related studies in the NIST program established the applicability of the maturity method to high-performance concrete (Carino et al ...

Get price

Internal Curing of High-Performance Blended Cement

2007-7-11  Internal curing is seen to be particularly beneficial for the mortars containing silica fume or slag blended cements. For the blended cement containing a Type F fly ash, less autogenous deformation is observed, due to the maintenance of a more open (percolated) pore structure containing larger pores, as supported by low temperature calorimetry ...

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Recyclable Wastes as Internal Curing Materials to Improve ...

This study discusses the researchers’ experiences with regard to the use of sustainable materials (waste materials and recycling materials) as internal curing materials during the development process for high-performance concrete (HPC). Generally, the use of waste materials as internal curing materials to enhance interior curing reduces the self-desiccation that occurs in cement paste ...

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The Influence of Lightweight Aggregate on Internal

2020-10-13  Protected paste volume in concrete—Extension to internal curing using saturated lightweight fine aggregate. Cement and Concrete Research, 29(11), 1863-1867. 2 Jensen, O.M. Hansen P.F. (2001). Water-entrained cement-based materials I. Principles and theoretical background. Cement and Concrete Research, 31(4), 647-654.

Get price

Effect of internal curing by using superabsorbent polymers ...

2013-6-14  The article presents the results of a round-robin test performed by 13 international research groups (representing fifteen institutions) in the framework of the activities of the RILEM Technical Committee 225-SAP “Applications of Superabsorbent Polymers in Concrete Construction”. Two commercially available SAP materials were used for internal curing of a high-performance, fine

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