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ACI Lab Level 2 - ASTM C157 Length Change of Concrete (Shrinkage) - CRMCA Online Concrete Procedures
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**Still valid in 2024**
CRMCA presents the Online Concrete Procedures for preparing for ACI certifications.
ASTM C157 / C157M - Standard Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete
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CRMCA website: www.crmca.org/
CRMCA Registration for ACI: www.crmca.org/...
ACI website: www.concrete.org/
ASTM website: www.astm.org/
ACI Reference for Modifications to C157 (2018): • Modification to ASTM C...
@RajuSharma-ir5is 3 жыл бұрын
The video at time 11:29 minute, How the shrinkage percentage value is calculated? Please explain..
@azbam87 4 ай бұрын
I think your information is incorrect in your initial information in respects to consolidation. Although at 4:01 the reference to ASTM C192 is correct C192 does not give us a range for consolidation per lift it would be a flat 30 or 40 rods depending on the size of the mold. There should also be a range of 10-15 taps with a mallet as noted in C192. Although the video did help understand the test method in general. I thank you for many clarifications.
@crmcacolorado 3 ай бұрын
Thank you for the note. We will review for our update soon!
@JorgeLuisJaldinLarrain 3 жыл бұрын
Thanks for this video. It arrived just in time.
@crmcacolorado 3 жыл бұрын
We are glad to be there just in time for you! Hope it helps in the process.
@jesusglopez8430 Жыл бұрын
Thanks for sharing.
@taiwoagunbiade3619 2 жыл бұрын
The % shrinkage looks incorrect.. or am i getting it wrong?
@arminjamali9067 9 ай бұрын
Could you possibly inform me what value should be substituted if the gauge length is not 250mm (10 in.)?
@vlogsbybushra 3 жыл бұрын
awlla video
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