PROBLEM 1 Given the following parameters, design a Concrete Mix Design ACI Method Required average strength will be 28MPa with slump of 75 to 100mm. The coarse aggregate has a nominal maximum size of 25 mm and a dry-rodded mass of 1900kg/m'. Other properties of the ingredients are: Cement Type I specific gravity 3.15 Coarse aggregate bulk specific gravity 2.75 absorption 3 % Fine aggregate bulk specific gravity 2.68 absorption 1.2 % fineness modulus 3 Adjustment for Aggregate Moisture: Tests indicate total moisture of 5 percent in the coarse aggregate and 8 percent in the fine aggregate.

PROBLEM 1 Given the following parameters, design a Concrete Mix Design ACI Method Required average strength will be 28MPa with slump of 75 to 100mm. The coarse aggregate has a nominal maximum size of 25 mm and a dry-rodded mass of 1900kg/m'. Other properties of the ingredients are: Cement Type I specific gravity 3.15 Coarse aggregate bulk specific gravity 2.75 absorption 3 % Fine aggregate bulk specific gravity 2.68 absorption 1.2 % fineness modulus 3 Adjustment for Aggregate Moisture: Tests indicate total moisture of 5 percent in the coarse aggregate and 8 percent in the fine aggregate.

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 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

PROBLEM 1
Given the following parameters, design a Concrete Mix Design ACI Method
Required average strength will be 28MPa with slump of 75 to 100mm. The coarse aggregate
has a nominal maximum size of 25 mm and a dry-rodded mass of 1900kg/m'.
Other properties of the ingredients are:
Cement Type I
specific gravity
3.15
Coarse aggregate
bulk specific gravity 2.75
absorption
3%
Fine aggregate
bulk specific gravity 2.68
absorption
1.2 %
fineness modulus 3
Adjustment for Aggregate Moisture:
Tests indicate total moisture of 5 percent in the coarse aggregate and 8 percent in the fine
aggregate.

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Thank you .
Design the concrete mix according to the following conditions:Design EnvironmentPavement slab, Bozeman, Montana (cold climate)Required design strength = 3000 psiSlab thickness = 12 in.Statistical data indicate a standard deviation of compressive strength of250 psi is expected (more than 30 samples).Only air entrainer is allowed.Available MaterialsAir entrainer: Manufacture specification is 0.15 fl oz/1% air/100 lb cement.Coarse aggregate: 2 in. nominal maximum size, crushed stoneBulk oven-dry specific gravity = 2.573, absorption = 2.8,Oven-dry rodded density = 120 pcfMoisture content = 1,Fine aggregate: Natural sandBulk oven-dry specific gravity = 2.540, absorption = 3.4,Moisture content = 4.5,Fineness modulus = 2.68
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subject: construction management and testing
Note:hand written solution should be avoided.
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