Alkali Silica Reactivity Test - Alkali Silica Testing - Preparation of Aggregates Testing ASTM C1260, “Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method). Alkali silica reaction (ASR) is a chemical reaction between certain reactive minerals in some aggregate and alkalies in the pore solution of concrete (Farny and Kerkhoff 2007).
This reaction can result in expansion and cracking of the concrete leading to shortened service life. Guidance on preventing deleterious ASR is available from a number of sources (Thomas et al. 2008; ACI 2008; PCA 2007; and CSA 2004) and several mitigation strategies are often available.
To determine whether an aggregate is potentially reactive, ASTM C1260, Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method) is often used as a screening test
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In this video, ASR Testing as per #ASTMC1260 performed by ACTS, Doha, #Qatar as #validation process in prequalification of #USACE Middle East District.
See other part :
Part 2/5 : https://youtu.be/2_8p5kTom6M
Part 3/5 : https://youtu.be/Pn5L3rgoarQ
Part 4/5 : https://youtu.be/UmJoeeU3HmY
Part 5/5 : https://youtu.be/PHT1pC-9maY
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Performed by : ACTS Qatar : https://acts-int.com/
Client : USACE Middle East District - State of Qatar
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