Civil engineering material question 7 and 8 1. Draw 2 schematic diagrams and explain life cycles of gypsum and lime.2. (i) Draw a typical stress-strain curve of steel tensile test and (ii) explain Young's modulus,yield strength, ultimate strength and ductility of steel.3. Explain fractional distillation of oil and production of asphalt with the help of schematicdrawings.4. (i) List 4 mineral components of Portland cement (write down their formal name and cementchemistry notation) and (ii) list 3 typical types of mineral admixtures to cement.5. (i) Regarding fresh concrete, explain the concept of W/C ratio and slump, and (ii) discuss therelationship between the two concepts.6. Fill the table below, calculate fineness modulus and determine the type of the sand tested.sieve(mm)residue (g)4.752.361.180.600.300.15<0.15508010010575855aA7. Bulk density of a piece of dry sponge (whose dimension is 10 cm x 10 cm x 3 cm) is 0.05g/cm³. It weighs 300 g when fully soaked with water (water density is 1 g/cm³). Findporosity of the sponge.8. Required strength grade of concrete is C30, slump required is 20-40mm. Standard deviationof concrete strength (6) is 4 MPa.Constants A=0.46, B=0.07, a=1. Properties of rawmaterials are as follows:Ordinary cement: fee=47 MPa, p=2400 kg/m³p=1000 kg/m³, usage 165 kgp=2200 kg/m³, S,=35%, Ws=1%Water:Sand:p=2300 kg/m³, W=2%Design preliminary mix ratio and working mix ratio.Crushed stone:

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Bulk density of a piece of dry sponge (whose dimension is 10 cm x 10 cm x 3 cm) is 0.05 g/cm³. It weighs 300 g when fully soaked with water (water density is 1 g/cm³). Find porosity of the sponge.

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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Concept explainers

Analysis and Procedures for Material Selection

The term material selection means to select the right material for various engineering applications. There are various engineering materials available and each has different individual properties. Thorough knowledge of the material properties and behavior is crucial in the design process. For instance, a structural member, such as a beam, is used to support vertical shear loads by the building itself. To withstand such loads, the material of the beam must possess adequate strength and stiffness to resist any deformation that might lead to the formation of cracks.

Question

Civil engineering material question 7 and 8

1. Draw 2 schematic diagrams and explain life cycles of gypsum and lime.
2. (i) Draw a typical stress-strain curve of steel tensile test and (ii) explain Young's modulus,
yield strength, ultimate strength and ductility of steel.
3. Explain fractional distillation of oil and production of asphalt with the help of schematic
drawings.
4. (i) List 4 mineral components of Portland cement (write down their formal name and cement
chemistry notation) and (ii) list 3 typical types of mineral admixtures to cement.
5. (i) Regarding fresh concrete, explain the concept of W/C ratio and slump, and (ii) discuss the
relationship between the two concepts.
6. Fill the table below, calculate fineness modulus and determine the type of the sand tested.
sieve(mm)
residue (g)
4.75
2.36
1.18
0.60
0.30
0.15
<0.15
50
80
100
105
75
85
5
a
A
7. Bulk density of a piece of dry sponge (whose dimension is 10 cm x 10 cm x 3 cm) is 0.05
g/cm³. It weighs 300 g when fully soaked with water (water density is 1 g/cm³). Find
porosity of the sponge.
8. Required strength grade of concrete is C30, slump required is 20-40mm. Standard deviation
of concrete strength (6) is 4 MPa.
Constants A=0.46, B=0.07, a=1. Properties of raw
materials are as follows:
Ordinary cement: fee=47 MPa, p=2400 kg/m³
p=1000 kg/m³, usage 165 kg
p=2200 kg/m³, S,=35%, Ws=1%
Water:
Sand:
p=2300 kg/m³, W=2%
Design preliminary mix ratio and working mix ratio.
Crushed stone:

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TABLE 1.2 Minimum Densities for Design Loads from Materials Aluminum Concrete, cinder Concrete, stone Clay, dry Clay, damp Sand and gravel, dry, loose Sand and gravel, wet Masonry, lightweight concrete units Masonry, normal weight units Plywood Steel, cold-drawn Wood, Douglas Fir Wood, Southern Pine Wood, spruce Occupancy or Use Assembly areas and theaters Fixed seats Movable seats Garages (passenger cars only) Office buildings lb/ft³ 170 108 144 63 110 100 120 105 TABLE 1.4 Minimum Live Loads* Lobbies Offices 135 36 492 Storage warehouse Light Heavy 34 37 29 *Minimum Densities for Design Loads from Materials. Reproduced with permission from American Society of Civil Engineers Minimum Design Loads for Buddings and Other Structures, ASCE/SEI 7-16. Copics of this standard may be purchased from ASCE at www.ace org publications lb/ft² kN/m² 27 170 22.6 60 100 40 9.9 173 15.7 18.9 16.5 100 50 21.2 5.7 773 5.3 Live Load 5.8 4.5 kN/m² 2.87 4.79 1.92 4.79 2.40 6.00 11.97 TABLE 1.3 Walls 4-in.…