ASTM C90 Standard Specification for Loadbearing Concrete Masonry Units
ASTM C90 standard describes the necessary guidelines for making and checking quality in solid and hollow concrete block designs used in construction. Because of this specification, the units used in these constructions are strong enough, absorb only the needed moisture, and have the same size to be safely placed in walls. According to this method, performance standards are checked as well as the details of making the units, possible differences, and grouping by density. It gives manufacturers, engineers, contractors, and architects a useful goal to ensure that structures are reliable, can last long, and follow building regulations.
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ASTM C90 Introduction
The ASTM C90 sets minimal standards for hollow and solid concrete masonry units used in load-bearing construction. These blocks are used in all kinds of works—walls, foundations, or retaining structures. These blocks are part of many different projects, such as walls, foundations, and retaining structures. The standard checks that units can handle loads and stay in place properly without collapsing. Having this specification is mandatory for those who produce, design, and assemble products in the construction industry.
ASTM C90 Test Method
Absorption Test
Measures moisture absorption capacity; excessive absorption may compromise durability.
Dimensional Tolerances
Ensures units fall within specified limits for length, width, and height for construction accuracy.
Moisture Content
Determines whether units are dry enough for proper handling and installation.
ASTM C90 Equipment and Sample Preparation
Specimen Details
Hollow or solid concrete masonry units (typically 8 in. x 8 in. x 16 in.)
Specimen Preparation
Cured and stored as specified, surfaces cleaned before testing
Specimen Dimensions
Must fall within permissible tolerances: ±1/8 in. for length, height, width
ASTM C90 Results and Interpretation
A unit is considered ASTM C90 compliant when it gets at least 13.1 MPa in compressive strength, its water absorption fits within accepted ranges depending on density class, and it is made to acceptable size standards. If any of the minimum conditions are not met, the unit must not be used in any load-bearing way. If the findings are the same, there is no reason to doubt the raw materials, mixture, or curing practices.
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ASTM C90 Related Test Methods
ASTM C140 sampling and testing of concrete masonry are standard test methods for testing concrete masonry units and related units, and ASTM C426 is a standard test method for linear drying shrinkage of concrete masonry units.
ASTM C90 Applications and Industry Use
Many architects and engineers use this method of units when building residential, commercial, or industrial structures through masonry. Compressed concrete has the necessary strength and accuracy to function well in walls, retaining structures, and basement designs. With reinforcing units and grouting, the efficiency of wind and earthquake safety in construction increases.
ASTM C90 Materials Commonly Tested
Building standards require testing concrete blocks formed from Portland cement, sand, gravel, and crushed stone by mixing them with water. Depending on how these units are grouped by density, aggregating them may be light or heavy.
ASTM C90 Common Challenges and Troubleshooting
Any inconsistency in the building products, improper drying, or unequal compaction can cause difficulties in meeting the strength and absorption requirements. Dimensional errors may happen when molds are old or quality control is low. Equipment needs to be calculated, and all procedures in manufacturing should be strictly followed to stay in compliance.
ASTM C90 Safety and Best Practices
All employees need to follow safety advice when testing heavy masonry units and compression machines. It is important to put on gloves and steel-toed boots while working on construction sites. Operation safety and the same results can be achieved by carefully performing moisture conditioning and curing procedures.
ASTM C90 Importance
This standard ensures that the buildings and structures made by manufacturers and builders remain safe and last for a long time while following all the design and code rules.
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FAQ's
Where can I get the astm c90 tested?
You can share your astm c90 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 c90 test to various testing techniques.
How much do I need to pay for the astm c90 test?
Please contact us for a detailed quote for your astm c90 testing needs. Cost incurred to carry out different astm c90 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 c90?
The required number of samples or specimens should comply with the procedure given in the astm c90 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 c90 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 c90 test?
The turnaround time for astm c90 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 c90 tested?
You can share your astm c90 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 c90 test to various testing techniques.
MaTestLab Inc. offers accessible, quick, and affordable material testing, product testing, and failure analysis services. We support your on-demand testing and expert consultation needs with the help of our extensive network of material testing laboratories situated in the US and other parts of the world.
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