A civil engineer wants to design a concrete mix design with the following criteria: Design a concrete strength: 25 MPa with a slump of 90 mm. • Ignore the need for exposure • Select a non-air entrained concrete Fine aggregates properties: Fineness modulus 2.67; Bulk specific gravity 2.66 Coarse aggregates properties: Maximum size aggregate of 25 mm with the bulk specific gravity 2.55 and dry-rodded mass 2000 kg/m3. Based on the criteria above 2.1. Calculate the required strength. 2.2. Calculate the water cement ratio. 2.3. Calculate the mix proportions of all materials including cement, water, fine aggregates, coarse aggregates, and air content for 1 m3.

A civil engineer wants to design a concrete mix design with the following criteria: Design a concrete strength: 25 MPa with a slump of 90 mm. • Ignore the need for exposure • Select a non-air entrained concrete Fine aggregates properties: Fineness modulus 2.67; Bulk specific gravity 2.66 Coarse aggregates properties: Maximum size aggregate of 25 mm with the bulk specific gravity 2.55 and dry-rodded mass 2000 kg/m3. Based on the criteria above 2.1. Calculate the required strength. 2.2. Calculate the water cement ratio. 2.3. Calculate the mix proportions of all materials including cement, water, fine aggregates, coarse aggregates, and air content for 1 m3.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter20: Design Of Rigid Pavements

Section: Chapter Questions

Problem 1P: Portland cement concrete consists of what four primary elements?

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Concept explainers

Types of Concrete

Concrete is the fundamental material used in civil engineering such as building materials for building structures. Concrete is an aggregate mixture of cement, sand, and fine and coarse rock pieces. The cement acts as a binding material that holds the compositions together, sets, and hardens with time. Apart from cement, there are other different types of binding materials used, such as lime concrete, bitumen, asphalt, and so on.

Question

A civil engineer wants to design a concrete mix design with the following criteria:
Design a concrete strength: 25 MPa with a slump of 90 mm.
Ignore the need for exposure
Select a non-air entrained concrete
Fine aggregates properties: Fineness modulus 2.67; Bulk specific gravity 2.66
Coarse aggregates properties: Maximum size aggregate of 25 mm with the bulk specific
gravity 2.55 and dry-rodded mass 2000 kg/m3.
Based on the criteria above
2.1. Calculate the required strength.
2.2. Calculate the water cement ratio.
2.3. Calculate the mix proportions of all materials including cement, water, fine aggregates,
coarse aggregates, and air content for 1 m3.

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