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4) Use of wastes in concrete such as plastics, glass, rubber,, , , , Unit 6: Deterioration and repairs: [6 hrs.], , a) Deterioration: Permeability and durability, chemical attack and sulphate attack by seawater,, acid attack, chloride attack, carbonation of concrete and its determination, corrosion of, , reinforcement., , b) Repairs: symptoms and diagnosis of distress, evaluation of cracks, selection of repair, , procedure, repair of defects, common types of repairs., , Text/reference books, , Concrete by Mehta and Monterio, Mcgraw Hill Publications., , Concrete by Mindees, young and Darwin, Prentice Hall Publications., , Concrete technology by M.L. Gambhir, Tata Megrew Hill publications., , Concrete technology by M.S.Shetty, S.Chand Publications., , Concrete technology by A.R. Santhakumar, Oxford University Press., , Handbook on Non- Destructive Testing of concrete by Malhotra and Carnio, RC Press., Properties of concrete by A.M.Neville, Longman Publishers., , Concrete technology by R.SVarshney, Oxford and IBH., , Concrete technology by A.M.Neville, JJ.Brooks, AddisionWeslley., , 10, Engineered Concrete by Irving Kett, CRC Press., , Sea ee NS, , Pattern of Question Paper:, , ‘The Units in the syllabus shall be divided in two equal sections. Question paper shall be set, having two sections A and B. Section A questions shall be set on first three units (1,2,3) and, Section B questions on remaining three units (4,5,6). Question paper should cover the entire, syllabus., , For 80 marks Paper:, 1. Minimum ten questions., 2. Five questions in each section., , 3. Question no 1 and 6 be made compulsory and should have at least ten bits of two marks out of, which FIVE to be solved., , 4, Two questions from remaining questions from each section be asked to solve having, weightage of 15 marks.