For the following concrete mix design 1:0.51:1.29:3.6 (P:W:S:G), how much of each individual ingredient (Cement, Water, Sand and Gravel) should be used to cast a room slab with the following dimensions (5 x 4 x 0.2 m)? (consider 5% extra amount). Consider the following properties for the aggregate used: Coarse aggregate: Absorption capacity of 0.9% moisture content (SSD) of 0.35%. The fine aggregate: Absorption capacity of 1% moisture content (SSD) of 2.5 %. Note: Assume the unit weight of concrete to be 2420 kg/m3

For the following concrete mix design 1:0.51:1.29:3.6 (P:W:S:G), how much of each individual ingredient (Cement, Water, Sand and Gravel) should be used to cast a room slab with the following dimensions (5 x 4 x 0.2 m)? (consider 5% extra amount). Consider the following properties for the aggregate used: Coarse aggregate: Absorption capacity of 0.9% moisture content (SSD) of 0.35%. The fine aggregate: Absorption capacity of 1% moisture content (SSD) of 2.5 %. Note: Assume the unit weight of concrete to be 2420 kg/m3

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

Types of Cement

Cement is a fine mixture of limestone, chalk, or marl and clay which when mixed with water, becomes compacted due to the formation of strong molecular bonds. Due to hydration, cement turns into a hard mass when left for a sufficient amount of time upon mixing with water. The water turns the cement compounds into gel-like submicroscopic particles having higher surface areas. It is due to the hydration properties of cement, they are often known as hydraulic cement. For instance, Portland cement is a popular example in this category.

Question

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For the following concrete mix design 1:0.51:1.29:3.6 (P:W:S:G), how much of each individual
ingredient (Cement, Water, Sand and Gravel) should be used to cast a room slab with the
following dimensions (5 x 4 x 0.2 m)? (consider 5% extra amount). Consider the following
properties for the aggregate used:
Coarse aggregate:
Absorption capacity of 0.9%
moisture content (SSD) of 0.35%.
The fine aggregate:
Absorption capacity of 1%
moisture content (SSD) of 2.5 %.
Note: Assume the unit weight of concrete to be 2420 kg/m3

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Question 1 (1 point) Saved The minimum concrete strength for a side curb on the street in Hamilton, should be 30MPA 25 MPa 32MPA 40MPA Question 2 (1 point) Saved The bulk density is the ratio of the mass of the aggregate to an equalabsolute volume of water True False Question 3 (1 point) Saved Angular aggregate will decrease the void's volume True False Question 4 (1 point) Saved The bulk density of the aggregate includes the voids True False Question 5 (1 point) Saved The nominal size of the aggregate is acceptable if it is equal to 1/3 of the width of the form work the steel bar diameter the concrete cover in normal environment the clear spacing between the steel bars
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