a study on compatibility of concrete repair materials

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Permeability Compatibility Between Concrete Repair ...

Permeability Compatibility Between Concrete Repair Material and Concrete Substrate - Scoping Study. 8 . Abstract . The primary objective of this report is to develop a robust research program and to highlight the importance of research related to freeze-thaw durability and repair material compatibility with existing concrete substrates.

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Compatibility of concrete repair materials and systems ...

Feb 01, 1996  Compatibility of the repair material with the existing substrate is an important consideration if the repair is to withstand all the stresses induced by influences such as volume changes, and chemical and electrochemical effects. ... Study of bond in concrete

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Evaluation of the Compatibility of Repair Materials for ...

A: This study evaluates the compatibility of repair materials for concrete bridge decks. A new compatibility test set-up was designed and tested based on the concrete bridge deck cracking and delamination mechanism theory. The repair materials used

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INVESTIGATION INTO COMPATIBILITY BETWEEN REPAIR

The compatibility between repair material and substrate concrete exists when the composite section of repair material and substrate concrete withstands all stresses induced by applied load under different environmental conditions without experiencing distress and deterioration over a designed period of time. In this dissertation the ...

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Evaluation of the Compatibility of Repair Materials for ...

Sep 18, 2017  This study evaluates the compatibility of repair materials for concrete bridge decks. A new compatibility test set-up was designed and tested based on the concrete bridge deck cracking and delamination mechanism theory. The repair materials used in this study include lab formulated inorganic nano-aluminum silicates and commercially available organic two-part epoxy systems.

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Compatibility Issues in Design and Implementation of ...

for a scoping study on material compatibility issues of concrete repair materials with existing concrete. This paper builds on work funded by Douglas Burke through the Office of the Secretary of Defense, Corrosion Prevention and Control Program, Naval Facilities Engineering Command, Port Hueneme, California and

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INVESTIGATION INTO COMPATIBILITY BETWEEN REPAIR

The compatibility between repair material and substrate concrete exists when the composite section of repair material and substrate concrete withstands all stresses induced by applied load under different environmental conditions without experiencing distress and deterioration over a designed period of time. In this dissertation the ...

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Material Compatible Repairs (MCRs) for Concrete Pavements ...

It should be mentioned that the repair material developed in this study is a Class AA-Accelerated cement concrete repair. A primary requirement for this class of repair material is 7-hour compressive strength, which needs to be at least 1,500 psi. Based on Section 704 of Publication 408, the patching material for concrete bridge decks is a Class

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Compatibility Considerations for Durable Concrete Repairs

The topic of durability of concrete repair is too broad to be presented in a single paper. This paper, therefore, will be limited to reviewing one problem aspect of repair: compati­ bility. This paper is an attempt to characterize compatibility between repair materials and existing concrete and its relative contribution to durability.

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Compatibility of repair materials with substrate low ...

Nov 15, 2016  The purpose of this study is to verify the feasibility of a compatibility evaluation method between CA mortar and repair materials using a test method similar to methods described by Rashmi .Two low-modulus repair materials, resin mortar and sulphoaluminate cement (SAC)-based repair materials , were used in the repair system.The compatibility analysis between CA mortar and repair

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Evaluation of the Compatibility of Repair Materials for ...

This study evaluates the compatibility of repair materials for concrete bridge decks. A new compatibility test set-up was designed and tested based on the concrete bridge deck cracking and delamination mechanism theory. The repair materials used in this study include lab formulated inorganic nano-aluminum silicates and commercially available ...

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Case Studies in Construction Materials

A case study is included to validate the ac- ... General requirements of patch repair materials for compatibility [16,19]. Property Relationship of repair material (R) to concrete substrate (S)

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ACI MATERIALS JOURNAL TECHNICAL PAPER

emphasis on high compressive strength of repair materials, and moves toward a balance of strength, ductility, and repair material’s compatibility with existing concrete. When the tensile ductility requirement is satisfied, repair material’s free shrinkage limit and crack-control reinforcements become less important. This concept of ...

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Required Properties of Concrete Repair Materials - The ...

🕑 Reading time: 1 minuteBesides being of compatible properties, repair materials for cement, concrete/mortar shall also be easy to apply and require no attention after the repair has been applied. Contents:Required Properties of Concrete Repair MaterialsLow Shrinkage of Concrete Repair MaterialsRequisite setting/hardening PropertiesWorkability of Concrete Repair MaterialsBond with

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Study on the Compatibility of Self-Compacting Concrete ...

Self-compacting concrete often requires greater liquidity, and the big liquidity is easy to cause the concrete segregation. Thickener can effectively improve the rheological properties of concrete, namely appropriately increase plastic viscosity, but does not significantly affect concrete liquidity. The compatibility of polyacrylamide (PAM), carboxymethyl cellulose (CMC) in the cementitious ...

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INVESTIGATION INTO COMPATIBILITY BETWEEN REPAIR MATERIAL ...

The failure of concrete repairs is mainly due to improper selection of repair material based on individual repair material properties, without investigating the compatibility between repair material and substrate concrete. In this dissertation the compatibility between eight repair materials and substrate concrete was investigated in three stages.

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Compatibility of ultra high performance concrete as repair ...

@inproceedings{Munoz2012CompatibilityOU, title={Compatibility of ultra high performance concrete as repair material: Bond characterization with concrete under different loading scenarios}, author={C. Munoz and M. {\'A}ngel}, year={2012} }

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Repair Proof - deepblue.lib.umich

2 Property demands on Repair Material 2.1 Requirements on the Hardened Properties of Repair Material The concept of dimensional compatibility has been proposed by a number of authors [5]. This means that the mechanical and physical properties of the repair material should match those of the concrete substrate. The relevant properties

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Choosing Repair Materials Concrete Construction Magazine

Feb 13, 2013  The most basic repair materials available are cementitious patching compounds. These are one-part, normal-setting products that are ready to use with the addition of water. Modern repair materials, though, have enhancements that make them easier to use and the repairs more durable. By adding powder or liquid latex polymers to cement-based ...

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Evaluation of Flowable High Strength Concrete Used as ...

INTRODUCTION. The inclusion of fibers within concrete or mortar is well proven to increase the toughness, the energy absorption and the impact resistance in applications like slabs, floors, shell domes, rock slope stabilization, refractory linings, composite metal decks, seismic retrofitting, repair and rehabilitation of atructures, fire protection coatings and concrete pipes (Nataraja et al ...

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Effects of Substances on Concrete and Guide to Protective ...

sweeping, and immediate removal of spilled materials—is a simple way to maximize the useful service life of both coated and uncoated concrete surfaces. Improving the Chemical Resistance of Concrete Quality concrete must be assumed in any discussion on how various substances affect concrete. In general, achievement of

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ACI MATERIALS JOURNAL TECHNICAL PAPER

emphasis on high compressive strength of repair materials, and moves toward a balance of strength, ductility, and repair material’s compatibility with existing concrete. When the tensile ductility requirement is satisfied, repair material’s free shrinkage limit and crack-control reinforcements become less important. This concept of ...

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Analysis of Compatibility between Repair Material and ...

Dec 12, 2007  Due to the availability of a wide variety of repair materials in the industry with a wide range of physical and mechanical properties, it is important to determine the compatibility of a repair material with the substrate concrete.

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A quantitative approach to the concept of concrete repair ...

the existing substrate and the newly-cast material. In this respect, compatibility between the repair materi-al and the existing concrete is of critical importance. In fact, the level of compatibility will generally de-termine whether a repair project is a success or a failure, and whether or not a repaired structure is du-rable.

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Case Studies in Construction Materials

A case study is included to validate the ac- ... General requirements of patch repair materials for compatibility [16,19]. Property Relationship of repair material (R) to concrete substrate (S)

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Concrete Repair - National Precast Concrete Association

Jan 08, 2018  The best repair product is one with mechanical properties that closely match the original concrete. Therefore, if the precast product has compressive strength required to exceed 4,000 psi and the actual testing shows strength of 5,000-to-6,000 psi, the repair material needs to exceed 4,000 psi to ensure compliance.

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Study on the Compatibility of Self-Compacting Concrete ...

Self-compacting concrete often requires greater liquidity, and the big liquidity is easy to cause the concrete segregation. Thickener can effectively improve the rheological properties of concrete, namely appropriately increase plastic viscosity, but does not significantly affect concrete liquidity. The compatibility of polyacrylamide (PAM), carboxymethyl cellulose (CMC) in the cementitious ...

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Effective Structural Concrete Repair - Iowa

durable concrete repairs and recommended a method engineers can use to select repair materials. To select an appropriate repair material, an engineer must be aware of two factors: the repair material’s compatibility with the existing concrete, and the repair material application.

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Material Compatible Repairs (MCRs) for Concrete Pavements ...

Stiffness compatibility, thermal compatibility, and controlled shrinkage are three compatibility properties for an MCR Coarse aggregate type is the key parameter to achieve stiffness and thermal compatibility Presoaked lightweight aggregate (LWA) is a promising strategy to control the shrinkage of repair materials

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Study of the compatibility between light-cured repair ...

Oct 01, 2005  Based on current trends in research on techniques for repairing composite materials, this paper focuses on the compatibility between a light-cured repair material and composite materials. The repair material used in this study is intended to find applicability in techniques for repairing damaged composite materials. Test pieces of the composite material were excited by a sinusoidal acoustic ...

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Evaluation of Rapid Set Patching Materials for PCC ...

material, without investigating the compatibility between repair materials and substrate concrete, is a common reason for failure. In this research study, compatibility between eight repair ...

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Research Articles Challenge Journal of Concrete Research ...

Natali A, Manzia S, Bignozzia MC (2011). Novel fiber-reinforced composite materials based on sustainable geo-polymer matrix. Procedia Engineering, 21, 1124–1131. Pattnaik RR (2006). Investigation into Compatibility between Repair Material and Substrate Concrete using Ex-perimental and Finite Element Method.

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Concrete Cement-Based Materials Buildings ...

Concrete is the most prevalent building material used in our society today. Its universal use in a variety of civil engineering applications is due to its widespread availability, cost-effectiveness, structural characteristics, and ability to be molded into limitless geometries.

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Preservation Brief 15: Preservation of Historic Concrete

Achieving compatibility between repair work and original concrete may be difficult, especially given the variability often present in historic concrete materials and finishes. Formed rather than trowel-applied patch repairs are recommended for durability, as forming permits better ranges of mix ingredients (such as coarse aggregates) and ...

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