Solution
Ishwar answered on
Jun 12 2021
INDIVIDUAL ASSIGNMENT
Student Name
University
Table of Contents
Introduction 3
Methodology 3
1. Slump test : 3
2. Hardened concrete tests: 4
3. Flexural strength test 5
4. Hardened density test: 7
5. Moisture content test: 7
6. Rebound hammer test 7
Result analysis 7
Discussion of results 10
Conclusions 12
References 12
Introduction
In this report, there is discussed about the six laboratory experiment of two concrete mixtures. In first case, there is normal concrete which consist the cement, water, coarse aggregate and fine aggregate. The second mixture contains fly ash concrete with the mixture of powder, coarse aggregate, fine aggregate and water content. The material is classified as per types and class, this includes fine aggregate and coarse aggregate material. The mixture of concrete includes power (cement) classified in mainly six types includes ordinary Portland cement, blended cement, type 2 &3, type V and class G. there are significant factor affect for selection of material, this includes strength, durability, workability, ease to transportation, permeability, fire resistance and aesthetics of material.
In this report, there is mainly six laboratory experiment conduct in order to test the concrete material suitability for construction. This includes slump test, hardened concrete test i.e.
1. slump test
2. Compressive strength test
3. Flexural strength test
4. Hardened density test
5. Moisture content test
6. Rebound hammer test.
Methodology
1. Slump test:
The concrete mixture such as cement, water, fly ash and aggregate mixture prepared. In this test, the slump cone, steel tamping rod, trowel, measure tool and tamping rod uses. Initially, it is require preparing cone with 300 mm height with 200 mm bottom cone and 100 mm diameter for upper cone. The following figure provides a
angement for test.
Figure: procedures of slump test
As shown in above figure, the first layer of concrete is require to keep fresh into cone and tamp it 25 strikes using steel rod. Similarly, the second and third layer requires filling with the fresh concrete (Hussein, A., 2020). This way, three layers is prepare in order to develop concrete mixture. In this way, it is require calculating range from top concrete layer to bottom concrete layer of cone through measuring tool as shown in following figure. The slump test is uses for obtain the consistency of concrete mixture.
Figure: measure slump of concrete
2. Hardened concrete tests:
The fine concrete mixture such as fly ash concrete (FC) which consists of powder (90% cement+ 10% fly ash), water, coarse aggregate and fine aggregate material uses for concrete test. In this case, the sample concrete is compressed vertically in order to obtain strength, durability and mechanical parameters (Ahmad Zaidi, A., 2010).
In this case, the sample concrete material prepared with 150 x 150 x 150 mm square cube as per BS standard. Firstly, take off the sample concrete cube from the water curing tank. It is require wiping off the sample therefore it will remove additional water from the cubical surface. Place the cube in the compression test machine so that the load applied in normal direction
Figure: a
angement of compression strength test
The test conduct to identify the range of strength of concrete mixture before approved for construction.
3. Flexural strength test
The normal concrete mixture concrete (NC) which consists of...