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Problem 1: Answer the following question briefly: 1) Why is it important to follow standard tests exactly when testing Portland cement?

Problem 1: Answer the following question briefly: 1) Why is it important to follow standard tests exactly when testing Portland cement?

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Problem 1: Answer the following question briefly: 1) Why is it important to follow standard tests exactly when testing Portland cement? 2) Is quartz rich with silica? Why it is not suitable raw material for cement production? 3) What is meant by the conversion of HAC? What are the consequences of the conversion of HAC? 4) Why the amount of gypsum added to clinker should be carefully controlled? 5) Compare the contributions of C,S and C,S to the strength of concrete? 6) What is the difference between false set and flash set? Problem 2: Assign each of the following cements to one of the ASTM Types I to V: 1) C,S = 26%, C,S = 52%, C,A = 5%, C,AF = 13%, Fineness 300 m?/Kg. 2) C,S = 56%, C,S = 22%, C,A = 9%, C,AF = 8%, Fineness 370 m²/Kg. 3) C,S = 63%, C,S = 14%, C,A = 15%, C,AF = 9%, Fineness 550 m?/Kg. 4) C,S = 49%, C,S = 28%, C,A = 7%, C,AF = 13%, Fineness 340 m?/Kg. 5) C,S = 41%, C,S = 37%, C,A = 2%, C,AF = 12%, Fineness 330 m?/Kg. Problem 3: Identify the major cement factories in Jordan and use the map of Jordan to show the locations of these factories? List two obstacles facing the cement industry in Jordan?
Transcribed Image Text:Problem 1: Answer the following question briefly: 1) Why is it important to follow standard tests exactly when testing Portland cement? 2) Is quartz rich with silica? Why it is not suitable raw material for cement production? 3) What is meant by the conversion of HAC? What are the consequences of the conversion of HAC? 4) Why the amount of gypsum added to clinker should be carefully controlled? 5) Compare the contributions of C,S and C,S to the strength of concrete? 6) What is the difference between false set and flash set? Problem 2: Assign each of the following cements to one of the ASTM Types I to V: 1) C,S = 26%, C,S = 52%, C,A = 5%, C,AF = 13%, Fineness 300 m?/Kg. 2) C,S = 56%, C,S = 22%, C,A = 9%, C,AF = 8%, Fineness 370 m²/Kg. 3) C,S = 63%, C,S = 14%, C,A = 15%, C,AF = 9%, Fineness 550 m?/Kg. 4) C,S = 49%, C,S = 28%, C,A = 7%, C,AF = 13%, Fineness 340 m?/Kg. 5) C,S = 41%, C,S = 37%, C,A = 2%, C,AF = 12%, Fineness 330 m?/Kg. Problem 3: Identify the major cement factories in Jordan and use the map of Jordan to show the locations of these factories? List two obstacles facing the cement industry in Jordan?
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