Proper concrete quality check is one of the topics that attracts contractors’ attention, because the quality of concrete directly affects the project/ works. In fact, there are many methods, commonly used are concrete sampling and core drilling. Let’s learn how to do this with Dufago:
Concrete Check Before Pouring
Before pouring, it is necessary to check whether the concrete satisfies the given requirements, it is necessary to follow the procedures:
- Conduct concrete slump tests.
- Conduct concrete cylinder testing to verify its quality.
- Check the amount of water in mixed concrete to ensure its original quality.
- Mix concrete well so that when discharging the concrete sample, the most accurate slump can be achieved.
- Proceed to remove the mold, soak the specimen for a while for later quality evaluation.
Proceed To Conduct Compressive Strength Test on Concrete Specimens
After a 28-day curing period, the 15cm x 15cm x 15cm concrete cube specimen is placed in the machine to determine concrete compressive strength in units of MPa (N/mm²) or daN/cm² (kG/cm²).
Steps of Conducting Core Drilling Tests
The core drilling is a method used by many people to check the quality of concrete. In order to complete the procedure, it is necessary to follow these steps:
- Step 1: Locate the drilling core to be tested, usually customers will locate it beforehand.
- Step 2: Use a core drill to extract a concrete specimen to be tested.
- Step 3: Mark on the concrete specimens and flat cut 2 ends of the specimen along the mark with a cutter.
- Step 4: Measure the size of the concrete specimens.
- Step 5: Check all parameters on the specimens (e.g., diameter, rebar spacing.)
- Step 6: Cap the concrete specimen with specialized materials and ensure that it has a smooth, parallel, and uniform bearing surface.
- Step 7: Put the cylindrical specimen in the compression testing machine.
- Step 8: Load is applied continuously at the rate within the range of 2-10daN/cm2 until the specimen fails.
CONCRETE SUPPLY SERVICES IN DA NANG, QUANG NAM, QUANG NGAI
- Dufago Concrete is committed to being a supplier of Concrete products in Da Nang with the best quality and service to customers. Hurry up inbox fanpage for specific advice or contact via:
- Hotline: 0901.12.47.47 / 0915.73.79.73 (zalo)
- Address: 233 Dien Bien Phu - Hoa Khe Ward - Thanh Khe District - City. Danang
- Website: http://Dufago.com.vn
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