Q1) Read the following sentences, write true or false, and correct the sentences thatare false:-1-Iraqi specification No. 5 limited max SO3 in Portland cement by 1.5% whenC4AF< 5%, and by 3% when C 4AF > 8%.2-The actual value of the heat of hydration depends on water cement ratio. XX3- The alkali silica reaction is very fast, happen between active silica in the cementand the alkalis in aggregate.4- Sulphate in mixing water should not be more than 10,000 ppm.✓5- Higher curing temperature decrease earlier strength, but it increases 28-daystrength of concrete.Call vings: [SMI

The question has multiple sub-parts. Hence, as per the guidelines the first three questions have…

Q1) Read the following sentences, write true or false, and correct the sentences that are false: 1-Iraqi specification No. 5 limited max SO3 in Portland cement by 1.5% when C4AF< 5%, and by 3% when C 4AF > 8%. 2-The actual value of the heat of hydration depends on water cement ratio. X 3- The alkali silica reaction is very fast, happen between active silica in the cement and the alkalis in aggregate.

Q1) Read the following sentences, write true or false, and correct the sentences that are false: 1-Iraqi specification No. 5 limited max SO3 in Portland cement by 1.5% when C4AF< 5%, and by 3% when C 4AF > 8%. 2-The actual value of the heat of hydration depends on water cement ratio. X 3- The alkali silica reaction is very fast, happen between active silica in the cement and the alkalis in aggregate.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

(b) Cement is one of the most important material in building construction. However, as it is a manufactured material produced by various process, propose the procedure of testing to ensure compliance with standard consistency and strength of cement.
Civil engineering material question 4 , 5 and 6
Q1 a Subject: civil engineering materials
Q-5) Answer (True) or (false) and correct if (false). 1. C,S need more than twice amount of water from C,S to hydration. 2. Calcareous material as a source of silica and alumina in manufacture of Portland cement. 3. Rough surfaces of aggregate improve mechanical bond. 4. Saturated surface dry condition (SSD) of aggregate means all internal pores are saturated with water and its surface wet. 5. Iraqi specification No. 5 limited Sulfur oxide in the cement as max. by 2.8% when C3A > 5%.
This refers to a change from liquid state to solid state of cement paste.
I want the solution in less than 15 minutes
If the degree of hydration=55% and the weight of cement =100gm, the volume of gel water equal to *
Calculate the chemical shrinkage (cm3/g) for one gram of completely hydrated Portland cement with the following compound compositions: C3S = 65%, C2S = 19%, C3A = 4%, C4AF = 9%
Most cement slurries will contain some additives to modify the properties of the slurry to produce a better cement job to suit particular requirements. Fluid loss additive helps to maintain constant water to solid ratio in cement slurry. Which of the following is advantage of fluid loss additive? a. Increase free water of cement slurries b. Maximize formation damage c. Changes in slurry rheology is seen d. Prevent stuck pipe
Q4. ,Portland cement is a hydraulic cement that is produced by pulverizing clinkers removed from cement kilns, and that consists essentially of hydraulic calcium silicates. (1). What are the main types of the general cement? ( (2). What are the four main mineral compounds of Portland Cement clinker, please give their abbreviations.
We need to solve them all. Just the right choice
Civil engineering material question 7 and 8