MaTestLab > Test Standards > ASTM E736 Test Method for Cohesion/Adhesion of Sprayed Fire-Resistive Materials
Last updated 22nd October 2024
ASTM E736 Test Method for Cohesion/Adhesion of Sprayed Fire-Resistive Materials
ASTM E736 test method determines the cohesion, adhesion, or bond strength (tensile) of sprayed fire-resistive material (SFRM) applied to stiff backing perpendicular to the surface. A metal or plastic cap with a hook is used to determine cohesion/adhesion. A suitable adhesive is used to secure the cap on the SFRM before load application is done and failure point is determined.
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ASTM E736 Introduction
ASTM E736test procedures identify sprayed fire-resistive material (SFRM) attributes that are used as a sign of their suitability for in-place service. A SFRM applied to structural parts and assemblies must operate satisfactorily during fire circumstances as well as be able to withstand the different influences that may be present during construction and throughout the structure’s life. For determining the SFRM’s suitability for applications where cohesion and adhesion are important considerations, such as fireproofing or insulation, ASTM E736 is used to examine the mechanical qualities of the SFRM and is applicable in both laboratory and field procedures.
ASTM E736 Test Method
The cohesion or adhesion of a material, such as a SFRM, is determined using a metal or plastic cap with a hook attached. An increasing load is applied, and the failure point is measured using a scale.
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Cap Attachment
A metal or plastic cap is attached with a hook to the surface of the SFRM with adhesive.
Load Application and Measurement
A gradual increase in load is a manual process of applying an increasing load to the cap attached to the SFRM. Failure point determination involves continuous monitoring until failure occurs, and scale measurement is used to measure the load applied at the point of failure.
ASTM E736 Equipment and Sample Preparation
Specimen details
Cylindrical specimens are used for ASTM E736 testing, with three specimens per material or system and SFRM being tested. Fibrous and cementitious materials that are sprayed are among these fire-resistant materials.
Specimen dimensions
The dimensions of ASTM E736 specimens should be chosen to accurately represent the material being tested and allow for proper testing procedures.
Specimen preparation
A mold or container is prepared , cleaned, applied with a mold release agent, mixed and the SFRM material is applied, the surface levelled, the material cured, and the specimen is removed carefully.
ASTM E736 Results and Interpretation
The internal strength or connection between particles within the SFRM is assessed using cohesion theory. The bonding power between the SFRM and the cap is evaluated using adhesion. To assess the mechanical characteristics of the SFRM and its applicability for particular applications, material suitability determination is employed.
Test Methods Related to ASTM E736
ASTM E736 is related to standards such as ASTM E84 for surface burning characteristics of building materials and ASTM E605 for thickness and density of sprayed fire-resistive material (SFRM) applied to structural members.
Use of ASTM E736 in Various Industries
This standard is an adhesion-evaluation standard and is applied in construction, aerospace, automotive, and manufacturing sectors to ascertain that coatings are adherent to substrates with proper bonding for durability and performance.
Materials Commonly Tested with ASTM E736
It is a standard for adhering to materials such as metals, plastics, ceramics, and composites; ensuring their bond strength and resistance to peeling, blistering, or degradation under stress or environmental conditions.
Common Challenges and Troubleshooting in ASTM E736 Testing
One common problem in testing is inconsistent surface preparation, poor alignment, and environmental variation. The solution to these would be the standardization of cleaning methods, even pressure application, and test environment control.
Safety and Best Practices in ASTM E736 Testing
Safety is ensured in the test procedure through equipment maintenance, protective equipment during the testing, calibration of the tools, standardized procedures followed during testing, and maintaining some environmental conditions.
Importance of ASTM E736
The standard ensures quality, safety, and longevity in product development. This way, it helps avoid failures, defects, maintenance costs, and safety hazards in coatings. This establishes consistency and quality in the process of manufacturing and constructing.
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Where can I get the astm e736 tested?
You can share your astm e736 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e736 test to various testing techniques.
How much do I need to pay for the astm e736 test?
Please contact us for a detailed quote for your astm e736 testing needs. Cost incurred to carry out different astm e736 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for astm e736?
The required number of samples or specimens should comply with the procedure given in the astm e736 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
How much discount can I get on the astm e736 test?
MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the astm e736 test?
The turnaround time for astm e736 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the astm e736 tested?
You can share your astm e736 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e736 test to various testing techniques.
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