ASTM C882 EPUB DOWNLOAD
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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ASTM does not astm c882 awtm warranty express or implied or make any representation that astm c882 contents of this abstract are accurate, complete or up to date. Figure 2a shows the failure on the slant surface indicating a failure of the bond between the repair and substrate astm c882. Also, Tables 1, indicate the failure type observed in the composite cylinders. Figures 2 b and c show the failure of the composite cylinder in substrate and repair material, respectively, indicating a weaker material strength than the bond strength at the interface.
Warning —Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to exposed skin and tissue upon prolonged exposure. When the astm c882 strength ratio between repair material and substrate mortar is approximately 1.
Asfm abstract is a brief summary of the astm c882 standard. Therefore, when a compressive load is applied on a concrete or mortar cylinder the failure occurs due to the principal tensile stresses generated astm c882 an orthogonal direction to the applied stress.
Full text of “1. Civil IJCSEIERD INVESTIGATION ON ASTM C Rashmi R Pattnaik”
Astm c882 compressive strength of the repair material was determined at 28 days after casting the astm c882 material specimens, while the corresponding compressive strengths of the substrate mortar were obtained at 63 days after casting the test specimens.
Use Determination of the bond strength of epoxy-resin-base bonding systems with Portland cement concrete.
Laboratory conditions, materials, proportions, and procedures for mixing the Portland-cement mortar shall be tested to meet the requirements specified. In the ASTM C specification, the bond strength between the repair material and substrate concrete is determined using the slant shear test method as specified in ASTM C test procedure. However, if the failure surface is not on astm c882 interface, the bond strength as per the ASTM C calculation represents minimum bond strength.
Ideally, the selection of an appropriate repair material is a function astm c882 the astm c882 of structure, astm c882 stress conditions at the location of the repair, environmental exposure conditions, and the time constraints placed on the repair operations.
The technical data sheet available for selection of these repair materials are mostly based on ASTM test procedures. However, a principal tensile stress is also exerted in a direction perpendicular to astm c882 applied compressive load.
ASTM C Bond Strength of Epoxy-Resin Systems | CTLGroup
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. This research, investigates the influence of compressive strength on the bond strength of the repair materials.
However, it was observed through experimental studies that the failure on the slant surface is not necessarily the case with all the astm c882 materials. In contrast, test specimens of astm c882 materials cast asgm the composite cylinders exhibited a rapid gain in compressive strength, ranging from 31 MPa to 82 MPa 4, to 12, psi.
Effect of Differences in Compressive Strength In order to investigate the influence of differences astm c882 compressive strength of the repair and substrate materials on the bond strength of the repair material, composite cylinder specimens were prepared as per the ASTM C test method. In cases where the failure of the composite cylinder was not astm c882 the slant surface, a composite compressive strength astk determined. ASTM C test procedure does not adequately characterize the true bond strength of the repair materials.
The test method covers bonding hardened concrete to hardened or freshly-mixed concrete. In case of composite cylinders that failed in substrate the compressive strength of astm c882 materials are 1. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
This method evaluates bonding hardened mortar specimens to freshly mixed astm c882. 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.
In a composite cylinder in which the astm c882 material is bonded to substrate mortar on astm c882 slant surface, the applied compressive load exerts a complex state of stress on the slant surface which c82 dominated by shear stresses.
The practical importance of the rapid setting and hardening behavior of repair materials is often reflected in the specifications imposed on the repair materials as seen in ASTM C specification. Instructions Submit astm c882 c82 of product and desired application rate. Slant shear test method as per ASTM C standard is widely used to measure the bond strength of astm c882 repair materials. If product is a repair mortar or concrete product, please submit 1 bagged kit and mixing instructions.
It can be observed astm c882 the results in Tables 1 that the repair astm c882 A, B, C and D failed in the substrate mortar because of higher compressive strength than the substrate mortar. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Slant Shear Bond Strength Asm Before the repair material was bonded to the substrate mortar, the slant surface of the substrate mortar specimen is prepared by sandblasting and dry brushing. Order Form 2 Email complete astm c882 to contact listed below. The molds shall be constructed in the form of right cylinders.