Slump Test: Lab Report: Materials And Forms
1. Introduction
2. Materials and Equipment – Slump Test
3. Slump Test
4. Materials and Equipment - Vebe
5. Vebe Test
6. Conclusion
1. Introduction
The purpose of this laboratory was to first test the effect that increasing water content would have on the workability of fresh concrete, completed by way of a slump test. The second part of the laboratory was to check what the influence of a superplasticiser would have on workability of fresh concrete, this was completed by completion of a Vebe test.
2. Materials and Equipment - Slump
Equipment used within the slump test:
1. Slump Cone, Rod, Base plate Sampling tray
2. Small Pan Mixer
3. Measuring Cylinders
4. Scales
5. Buckets, trowel, scoop
6. Ruler
Materials used within the slump test
1. Ordinary …show more content…
True slump occurs when the concrete remains in mainly the same shape with maybe a minor slump taking place, and is the only test of use. Shear Slump occurs when the top of the mix comes off and slips towards the side. During a collapse slump the concrete completely falls or collapses. If the later of the slumps occur, in the case of the shear slump, a new sample should be taken and the test should be repeated. A collapse slump will show that the mixture is too wet and the workability of the fresh concrete mixture is too …show more content…
This Graph shows the increasing water content effect on slump size throughout the laboratory.
4. Materials And Equipment – Vebe Test
Equipment used within the Vebe Test:
1. Vebe Consistometer
2. Stop Watch
3. Small Pan Mixer
4. Measuring Cylinders, Buckets, Trowel and Scoops
5. Horizontal Disc
6. Vibrating Table
Materials used within the Vebe Test:
1. Ordinary Portland Cement – 3.3kg
2. Fine aggregate – sand – 6kg
3. 5 – 20mm Coarse aggregate – 7.1kg
4. Water – 1.2L
Vebe Test
The Vebe test is used in construction to measure the workability in fresh concrete. This test is mainly used on mixtures are noted to be too firm to carry out a slump test. Defined in seconds, it is shown as the time for the vibrations to totally compact the concrete and is recorded to the nearest second. In order to carry out the test a mix was made containing the materials and amounts shown above, added to the pan mixer and mixed for 2 minutes. When mixed the concrete is placed into the mould, again in three layers around one third of the height of the mould, tamping each layer 25 times with the
2. Materials and Equipment – Slump Test
3. Slump Test
4. Materials and Equipment - Vebe
5. Vebe Test
6. Conclusion
1. Introduction
The purpose of this laboratory was to first test the effect that increasing water content would have on the workability of fresh concrete, completed by way of a slump test. The second part of the laboratory was to check what the influence of a superplasticiser would have on workability of fresh concrete, this was completed by completion of a Vebe test.
2. Materials and Equipment - Slump
Equipment used within the slump test:
1. Slump Cone, Rod, Base plate Sampling tray
2. Small Pan Mixer
3. Measuring Cylinders
4. Scales
5. Buckets, trowel, scoop
6. Ruler
Materials used within the slump test
1. Ordinary …show more content…
True slump occurs when the concrete remains in mainly the same shape with maybe a minor slump taking place, and is the only test of use. Shear Slump occurs when the top of the mix comes off and slips towards the side. During a collapse slump the concrete completely falls or collapses. If the later of the slumps occur, in the case of the shear slump, a new sample should be taken and the test should be repeated. A collapse slump will show that the mixture is too wet and the workability of the fresh concrete mixture is too …show more content…
This Graph shows the increasing water content effect on slump size throughout the laboratory.
4. Materials And Equipment – Vebe Test
Equipment used within the Vebe Test:
1. Vebe Consistometer
2. Stop Watch
3. Small Pan Mixer
4. Measuring Cylinders, Buckets, Trowel and Scoops
5. Horizontal Disc
6. Vibrating Table
Materials used within the Vebe Test:
1. Ordinary Portland Cement – 3.3kg
2. Fine aggregate – sand – 6kg
3. 5 – 20mm Coarse aggregate – 7.1kg
4. Water – 1.2L
Vebe Test
The Vebe test is used in construction to measure the workability in fresh concrete. This test is mainly used on mixtures are noted to be too firm to carry out a slump test. Defined in seconds, it is shown as the time for the vibrations to totally compact the concrete and is recorded to the nearest second. In order to carry out the test a mix was made containing the materials and amounts shown above, added to the pan mixer and mixed for 2 minutes. When mixed the concrete is placed into the mould, again in three layers around one third of the height of the mould, tamping each layer 25 times with the