Question

Symptoms for acid attack?

(a) It will show disintegration of the concrete evidenced by loss of the cement paste

(b) It will show concrete surfaces that are very rough in areas where the paste is leached

(c) Affected concrete does not exhibit telltale features too distinctly

(d) Expansion does not occur without reaction products

The question was asked in a national level competition.

This is a very interesting question from Symptoms and Diagnosis of Distress topic in portion Repair Technology for Concrete Structures of Concrete Technology

Answer 1

The correct option is (a) It will show disintegration of the concrete evidenced by loss of the cement paste

The explanation: Acid attack will show disintegration of the concrete evidenced by loss of the cement paste.