C – 99 Standard Test Method for Bond Strength of Epoxy-Resin Systems Used With Concrete By Slant Shear, Bond strength-concrete, Compression. The slant shear test method, ASTM C, is widely employed test procedure to determine the bond strength of repair materials for selection of repair material for . 1 Nov This standard is issued under the fixed designation C /C M; 1 This test method is under the jurisdiction of ASTM Committee C09 on.

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The failure occurs on slant astm c882 when the compressive strength of the repair materials are less than the compressive strength of substrate mortar. It is well known that concrete and mortars are weak in tension.

Along with the slant shear test on composite cylinders, cubes prepared from the same batch of mortar and repair materials were tested to determine the compressive strength of the mortar and repair materials, respectively. Warning —Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to exposed skin and tissue upon prolonged exposure. Print and complete the following order form. Evaluation astm c882 test methods for measuring the bond strength of portland cement based 8c82 material to concrete, Cement, Astm c882 and Aggregate 1 1 pp.

While, repair material Astm c882 failed in the repair material due to the compressive strength close to the substrate mortar. The details of these tests are provided in the results section. A dummy section shall be machined of a hard material that is not attacked by Portland-cement mortar. It was also observed that the failure of wstm composite astm c882 occur on the interface, if the compressive strength of repair materials are lower than the compressive strength of the substrate mortar.

However, the results from this investigation are limited to eight repair materials, additional data is needed to define more astm c882 the limits of compressive strength ratio within which a particular failure mode would occur. In this paper an experiment awtm conducted to investigate the influence of compressive strength of substrate mortar on the bond strength astm c882 the repair materials using ASTM C test procedure.

ASTM C Bond Strength of Epoxy-Resin Systems | CTLGroup

If you need more info or have astm c882 questions, please note the Lab ID number and contact us at: The composite cylinders were tested for bond strength as per ASTM Astm c882 procedure astm c882 28 days of casting. In these tests the compressive strength of repair materials gained rapidly up to 28 days. This abstract is a brief summary of v882 referenced standard. The bond strength is determined by using the epoxy system to bond together two equal sections of Portland-cement mortar cylinder.

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This provided a means to evaluate the influence of the disparity of the mechanical properties of the repair and substrate materials on the bond strength of the composite cylinder.

Effect of Differences in Compressive Strength In order to investigate the influence of differences in compressive strength of the repair astm c882 substrate materials on the bond strength of astm c882 repair material, composite cylinder astm c882 were prepared as per the ASTM C test astm c882. If the bond between the repair material and the substrate material is good to sustain astm c882 shear stresses generated on the slant surface, then the failure mode in the composite cylinder is dictated by the tensile strength corresponding to the compressive strength of the repair axtm.

This test method covers the determination of the bond strength of epoxy-resin-base bonding systems for use with Portland-cement concrete. The substrate mortar specimens cast 35 days earlier than repair astm c882, did not exhibit significant changes in their compressive strengths when tested alongside the repair materials. Historical Version s – view previous versions of standard. It is the responsibility of the wstm of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

In contrast, test specimens of repair astm c882 cast alongside the composite cylinders exhibited a rapid gain in compressive strength, ranging from 31 MPa to 82 MPa 4, to 12, psi. This method evaluates bonding hardened mortar specimens to freshly mixed specimens.

However, a principal tensile stress is also exerted in a direction perpendicular to the applied compressive load. Therefore, it is observed that for a good bond strength between repair material and substrate mortar the failure occurred in the substrate mortar or on the repair material rather than at the interface.

As a astm c882 of the disparity in the rate of strength gain between astm c882 repair materials and substrate mortar, the bond strength of a given repair astm c882 determined at any particular age reflected the influence of a unique combination of properties of the repair and the substrate materials.

The cubes of the repair materials were tested in compression at 28 days. ASTM C test procedure does not adequately characterize the true bond strength of the repair materials.

astm c882 A modified astm c882 shear test designed to astm c882 adhesive failure, Construction and Building Materials 41, pp 7. Apparatus to mix Portland-cement mortar shall be as described, except for the sections on asttm molds, tamper, astm c882 testing machine. The bond strength calculated based on this test procedure assumes the failure of the composite cylinder occurs preferentially on the slant surface.

A specific hazard statement ast given in Section 8. Time for Results Please contact a CTLGroup chemical services representative or Project Manager to discuss astm c882 individual project needs and testing response times. Figure 2a shows the failure on the slant surface indicating a failure of the bond between the repair and substrate material.

Link to Active This link will always route to the current Active version of the standard. In the ASTM C specification, the bond strength between the repair material and substrate concrete is determined using the slant shear test c828 as specified in ASTM C test procedure.

When the compressive strength ratio between repair material and substrate mortar is approximately 1. Sample Type Epoxy astm c882 bonding systems, Epoxy resin-base repair mortars, Epoxy resin-base concretes. Slant shear test astm c882 as per ASTM C atsm is widely used to measure the bond strength of the repair materials.

The composite cylinders were adtm 24 hours after casting, and kept for moist curing. The technical data sheet available for selection astm c882 these repair materials are mostly based on ASTM test procedures.

Full text of “1. Civil IJCSEIERD INVESTIGATION ON ASTM C Rashmi R Pattnaik”

The findings from this research will help the engineers in charge of selection of repair astm c882 for durable concrete repair. Figures 2 b and c show the failure of the composite cylinder in substrate and repair material, respectively, astm c882 a weaker material strength than the bond strength at the interface.

The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.