2 edition of Bond strength of concrete patch repairs found in the catalog.
Bond strength of concrete patch repairs
Written in English
Thesis (Ph.D.) - Loughborough University of Technology, 1995.
|Statement||by Youguang Pan.|
B15 Cementitious Patch Repair of Concrete Dat e: July Edition 1 / Revision 0. B15 – Cementitious Patch Repair of Concrete Department of State Growth • VicRoads Test Method RC Determination of the Tensile Bond Strength of Concrete Repairs and Strengthening Systems. Understanding the repair conditions and choosing the correct product for the job are essential for a long-lasting repair. For thin repairs to small area with a chipped or damaged surface QUIKRETE® Vinyl Concrete Patcher should be used. Vinyl Concrete Patcher is enhanced with special exterior grade polymer resin that has strong bonding properties.
KWIK-CRETE is a very rapid setting, advanced urethane formulated, high industrial strength, ultra low viscosity concrete crack repair and concrete floor repair material. KWIK-CRETE is a two part, mix ratio by volume, % solids system. It is % solvent free and VOC free. Sand Mix can also be used as crack repair for areas with a minimum depth or width of 1/2” and maximum of 2”. Top 'N Bond® Concrete Patcher – A polymer modified sand/cement repair material used in repairing cracks, leveling uneven concrete surfaces and as a concrete overlay. The range of repair is for a maximum of 1/2” down to feather edge.
Evaluation of Bond Strength between Normal Concrete Substrate and Ultra High Performance Fiber Concrete as a Repair Material By Bassam A. Tayeh, B.H. Abu Bakar, M.A. Megat Johari and Yen Lei Voo Get PDF ( KB). BOND-TEST 20 Purpose The BOND-TEST is used to conduct a pull-off test in accordance with ASTM C, "Test Method for Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlay Materials by Direct Tension (Pull-off Method).".
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No matter what repair system is chosen one of the requirements of a repair system is the ability to provide an adequate bond between the repair and the old concrete. Ideally the bond strength should be such that the composite structure behaves as monolithial. The factors which in the authors’ view plays an influential role in creation of bond Cited by: (overlay) is the weakest portion of the system, and we know the bond strength exceeds the ultimate stress applied.
This is also referred to in the literature as cohesive failure of the overlay. 2,3,4 Finally, if the failure occurs in the substrate, or underlying concrete, the overlay (repair) concrete and the bond are stronger than the existing File Size: KB.
Abstract: Good bond strength between overlay and substrate is a key factor in performance of concrete repairs. This thesis was aimed at studying the evaluation of bond strength between repair material and substrate at the interface. Many factors such as surface roughness, existence of micro cracks, compaction, curing etc influence the bond.
ASTM C / CM, Standard Test Method for Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlay Materials by Direct Tension (Pull-off Method), ASTM International, West Conshohocken, PA,Back to Top.
Interfacial bond failure is a common cause of con - crete surface repair failure. ACI includes revised criteria for the interfacial bond strength provisions (Brewe, et al., ) introduced in ACI These provisions assess the required strength between a cementitious repair material and a concrete substrate.
The ACI provisions. The right way to repair and resurface eroded concrete. a little hydrated lime and Portland cement and trowel this onto the concrete.
To get this stucco to bond. Featured Product: Top 'N Bond® Concrete Patcher. PREPARATION. Determine that the repair area is within the manufacture’s spec for minimum and maximum repair depths.
For deep repairs, Top 'N Bond can be used in multiple lifts of up to 1/2 inch at a time. Sakrete Multi-Purpose Sand or backer rod can also be used to fill deep voids.
Concrete would have gotten an F. There is nothing in basic portland cement that will act as a bonding agent. Portland cement concrete works well in mass and provides great compressive strength but not bond. Concrete is marvelous stuff but in time it will deteriorate. When it does, you either have to patch.
Usually very important--most repairs will be considered failures if the repair material doesn't bond to the concrete matrix. A big part of getting good bond is surface preparation. Consider the dimensional characteristics of the repair material: Drying shrinkage can debond a repair.
Bond strength of concrete patch repairs: an evaluation of test methods and the influence of workmanship and environment TZ (GMT) by Youguang Pan Experiments were carried out to study the effect of workmanship and environmental conditions on bond strength for concrete patch by: 1.
Bond strength of the interface between normal concrete substrate and GUSMRC repair material overlay Author links open overlay panel S.H.
Abo Sabah a M.H. Hassan a N. Muhamad Bunnori a b M.A. Megat Johari a. The bond strength measured by direct shear tests was to times of that measured by splitting tensile tests.
The bond strength measured by these methods can provide reference for the bond performance of repair concrete under different stress conditions. (4)Cited by: 7. The development and maintenance of a sound band is an essential requirement of a concrete patch repair. Tensile bond tests are increasing in popularity as a means of measuring this adhesive property, both on site for quality control and in the laboratory for materials evaluation.
This paper discusses the main issues relevant to tensile bond testing, namely material properties, surface Cited by: Providing a rougher bonding surface resulted in an increase in bond strength for all six repair and bonding agent materials. These increases were on the average 9% for pull-off, 13% for splitting, 19% for Bi-Surface shear, and 25% for slant by: The Rust-Oleum Concrete Patch and Repair lends an elegant and smooth finish to the concrete surface.
Just because a crack has formed in a concrete surface, it doesn't have to look ugly. Since it's quite easy to mix and apply, anyone can use it to repair cracks on concrete. The effectiveness of the repair largely depends on the bond strength between the repair material and the concrete substrate.
In the present work, surface roughness, bonding agents and curing age of the repair materials have been taken into consideration to evaluate the applicability and serviceability of a novel rapid repair material for Cited by: 7.
Regardless of the bonding medium, a minimum bond strength is required. Based on laboratory and field tests, Felt (Ref. 4) concludes that bond strengths greater than psi may be achieved, but that strengths of psi or less may be adequate. The bond strength of psi is generally used as a guide in designing bonding media.
In this paper, bond strength between ultra-high performance concrete and substrate made of normal concrete with different surface preparation was investigated experimentally. Thirty specimens were tested under bi-surface shear test with different surface preparation, including roughness degree, mechanical connector, and bonding agent.
Mix Vinyl Concrete Patcher by adding about 10 ounces of water per 5 pounds of Vinyl Concrete Patcher (the Vinyl Concrete Patcher should be poured into the mixing water). NOTE: the more water that is added during the mixing process, the weaker the bond strength and compressive strength will be.
Step 5a Mix the Vinyl Concrete Patcher for 3 to 5. But for bond strength, contractors must focus on the concrete's tensile strength, generally assumed to be about psi. To effectively protect concrete, the cementitious repair mortar and protective coating must develop and maintain an adhesive bond strength greater than the tensile strength of the host concrete.
CEMIX QUICK PATCH is a fast setting, fibre reinforced, polymer and micro silica modified concrete repair mortar for horizontal, vertical & overhead patching & feather edged applications.
It can be used up to 20mm in depth in one layer. TYPICAL APPLICATION / USES. Horizontal, vertical & overhead patching & feather edged repairs to concrete.Epoxy Patch is a unique epoxy patching system designed to fill and resurface cracks, holes and pits in a variety of surface types -- not just concrete.
Its ultra-strength patching formula is easy to use and even works under the most extreme weather conditions including rain. You can even feather-edge the mortar for the perfect s: Get free shipping on qualified Patch Concrete Repair or Buy Online Pick Up in Store today in the Building Materials department.
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