alleryStart learning →Per Table 3.2, the tolerable limit on TOTAL DISSOLVED SALTS in mixing water for concrete is:
A1,000 ppm of the mix water
B10,000 ppm of the mix water
C15,000 ppm of the mix water
D50,000 ppm of the mix water
Answer & Solution
Correct answer: C. 15,000 ppm of the mix water
1. Table 3.2 in §3.3.4 lists Total dissolved salts at 15,000 ppm.
2. Chlorides are capped at 10,000 ppm, sulphuric anhydride at 3,000 ppm, organic material at 3,000 ppm and pH between 4.5 and 8.5.
_Source: IGNOU ET-522 Block-1 Unit-3 Water, Table 3.2, §3.3.4, p. 42_
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