Answer carefully the following questions : 1-What is the effect on physical properties of cement, if the 1- residue of cement on B.S 90 micron sieve is greater than 10% for OPC? 2-State the meaning of normal consistency of cement. 3-What is the range of values of standard consistency of cement? 4-How the consistency of cement paste is measured? 5-State the significance of initial setting time and final setting time of cement. 6-What is the range value of compressive strength for normal concrete 7 days and 28 days? 7-What is the effect of aggregate grading on the properties of concrete? 8-Describe kinds of slump of fresh concrete with sketch. 9-What is the approximate value of Flexural strength if we have 25 MPa for compressive strength? 10-What is the approximate value of split tensile strength if we have 25 MPa for compressive strength?

Answer carefully the following questions : 1-What is the effect on physical properties of cement, if the 1- residue of cement on B.S 90 micron sieve is greater than 10% for OPC? 2-State the meaning of normal consistency of cement. 3-What is the range of values of standard consistency of cement? 4-How the consistency of cement paste is measured? 5-State the significance of initial setting time and final setting time of cement. 6-What is the range value of compressive strength for normal concrete 7 days and 28 days? 7-What is the effect of aggregate grading on the properties of concrete? 8-Describe kinds of slump of fresh concrete with sketch. 9-What is the approximate value of Flexural strength if we have 25 MPa for compressive strength? 10-What is the approximate value of split tensile strength if we have 25 MPa for compressive strength?

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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Similar questions

Depending on the properties of the different chemicals and their relative composition, identify the high early strength (HE) and low-heat (LH) cements from the table. Give detail explanation for your answer
(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.
4. A sieve analysis test was conducted on a representative sample of a concrete aggregate material for determining its gradiation, and the results are given below. Calculate the percent passing through each sieve and plot the grading curve of the aggregate. The following size sieves were used and the net weights of the material retained on each of them are: SIEVE SIZE 12.5 9.5 4.75 2.36 1.18 .60 .425 .30 .15 .075 PAN (mm) AMOUNT 38.7 36.8 77.5 127.8 164.6 174.3 141.4 105.6 67.8 33.9 RETAINED (g)
Q1 a Subject: civil engineering materials
Determine the Fineness Modulus of the given aggregate data, determine what kind of aggregate based on the computed data Mass of Mass of Sieve Sieve+Agg Empty Sieve (g) No Retained (g) 166.13 4 116.23 10 99.27 135.77 20 97.58 139.68 40 98.96 138.96 60 91.46 114.46 100 93.15 184.15 200 90.92 101.12 Pan 70.19 301.19
If the degree of hydration=55% and the weight of cement =100gm, the volume of gel water equal to *
2) How should the moisture contents of the three samples compare? 3) Why is it important to determine the moisture content of aggregates? 4) Describe the natural moisture content (in general terms rather than numerical terms) of aggregate stockpiles and how it is dealt with in the construction industry.
Topic Cement: - Through some light on various constituent of cement. Also give brief explanation on the properties of each constitution.
Table shows the grain size distributions of aggregates A, and B. Answer the following questions and show all calculations: What are the maximum sizes of aggregates A and B?
Oxide composition of 4 portland cement samples is given in the following table. Show all of your work for the following questions. a) Which cement is more suitable for early strength? Why? b) Which cement is more suitable for sulfate attack? Why? c) Which cement is more suitable for cold weather? Why? d) Which cement seems to be stored better? Why? PC 1 PC 2 PC 3 PC 4 CaO, % 61.6 62 61.6 61.9 SiO2, % 21.7 20.7 21.7 20.6 Al2O3, % 6 6.1 5.4 6.1 Fe2O3, % 2.4 1.8 2.8 1.9 MgO, % 2.6 5.3 2.4 2.9 SO3, % 2.1 2 2.1 2 K2O, % 0.5 0.6 0.8 0.9 Na2O, % 0.1 0.1 0.1 0.5 Loss on Ignition, % 0.8 1 1.2 1 Insoluble residue, % 1.5 0.9 0.8 0.9
1. The table below present different type of cement, select which type is conforms (suitable) for each (Explain): 1. Mass concrete 2. Marine construction 3. Slab in building Compounds (%) Cement 1 Cement 2 Cement 3 Cement 4 C,S 34.3 34 69.6 44 34.8 50 6.92 23 CS C,A 10.26 6.2 0.09 9.9 9.4 8.2 14.71 8.7 CAF 3.1 2.9 2.3 2.7 SO
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