Then the compacting factor test was carried out and the results were recorded. It can be carried out from batch to batch to check the workability of freshly made. A separate test, known as the flow table, or slump flow, test, is used for concrete that is too fluid workable to be measured using the standard slump test, because the concrete will not retain its shape when the cone is removed. Concrete slump test theory and lab test civil engineering.
Lab 1 concrete proportioning, mixing, and testing supplemental lab manual prepared by mutlu ozer objectives concepts background experimental procedure report requirements discussion objectives students make concrete according to the mix design. Slump test is the most commonly used method of measuring consistency of concrete which can be employed either in laboratory or at site of work. Concrete slump test procedure applications, types, uses and. Slump test is the most commonly used method of measuring workability of concrete which can be employed either in laboratory or at site of work. The slump test is perhaps the most widely used because of the simplicity of the apparatus required and the test procedure.
In the freshly prepared cement paste, small particles interact via colloidal forces, such as vander waals, electrostatic repulsion, steric hindrance, and hydrogen bonding, and some bigger particles interact via direct contact like friction or collisions. Weekly certified readymix plant report form 24143 3. The technique depicted below is adapted from mark dutton. Even with the increase in knowledge of concrete rheology, the slump test remains. Muhamad akmal bin mohamad sharif 03dka16f2030 ainunyasmine binti haslan 03dka16f2023 nirandoal al cheng 03dka16f2029 nur aida binti zainol abidin 03dka16f2027 objective to determine the workability or. Concrete workability, quantified by concrete slump, is an important property of a concrete mixture. Lab report 1 in a table, display the actual amount of material used and the theoretical calculated amount of material used. Compaction factor test civil engineering lab experiment. The compacting factor test is performed to find out the workability of concrete. Concrete slump test for workability procedure and results. For slump measurements made on concrete taken from the same.
This test plays a vital role in ensuring immediate concrete quality in a construction project. After mixing the concrete, the slump test was then carried out. Changes in the value of slump obtained during a job may indicate changes in materials, in the water content or in the proportions of the mix, so it is useful in. The concrete slump test is known as standard test method for slump of hydrauliccement concrete and carries the code astm c 143 or aashto t 119. We usually perform slump test on site and lab due its ease and results. The slump test is described differently among sources.
The test is carried out in accordance with bs en 123502, testing fresh concrete. For concrete paving projects only, send copies of all agency and contractor tests results including control charts. The slump test is a neural tension test used to detect altered neurodynamics or neural tissue sensitivity. Compaction factor test of concrete for low workability concrete. Lab report for slump test of concrete workability civil. Slump test provides immediate result about the consistency and workability of concrete, that is the reason it is used widely in all over the world since 1922.
Lab reports by dibyandu pal december 18, 2019 may 1, 2020 leave a comment. The test result is only valid if it yields a true slump. Compaction factor test civil engineering lab experiment duration. Concrete slump test experiment procedure civilology. This research proposes a machine learning model for predicting. Definition slump is the gap between the mold top after removal and the top of result concrete. Introduction the concrete slump test is used for the measurement of a property of fresh. Conclusion slump test to determine the relative water content of concrete, depending on the loss in height slump of a sample obtained from a coneshaped mould.
The steel slump cone is placed on a solid, impermeable, level base. It is a simple and lowcost test prepared at the laboratory or at the site during the work. Slump test is an empirical test that measures workability of fresh concrete, it is performed to check consistency of freshly made concrete. Test for workability of concrete slump cone youtube. Concrete slump test is a measurement of concretes workability, or fluidity. Mar, 2019 slump test can be done on site to check the concrete mix has expected fluid properties. The slump should be reported to the nearest 5mm and the type of slump i. It gives quick result about the workability of concrete. With the exception of the widely used slump test, the few methods that have been studied extensively have generally failed to gain widespread acceptance. Oct 03, 2017 astm c231 standard test method for air content of freshly mixed concrete by the pressure method duration. The slump test indicates the behavior of a compacted concrete cone under the action of gravitational forces. Slump test is an empirical test that measures workability of fresh ppt.
A sample is poured into a mini slump cone, rodded, struck off, and lifted at 2 minutes. Standard test method for the slump of hydraulic cement concrete. The consistency, or stiffness, indicates how much water has been used in the mix. Concrete slump test or slump cone test is to determine the workability or consistency of concrete mix prepared at the laboratory or the construction site during the progress of the work. Concrete slump test is a simple and lowcost test which is prepared in the laboratory or at the construction site for the determination of workability and consistency. Conclusion slump test to determine the relative water content. The concrete slump test aim the aim of this test is the obtain a. A slump test was carried out and the slump was 75m. Slump test doesnt give accurate results for the low workability of concrete when the slump is mar 09, 2017 the slump test indicates the behavior of a compacted concrete cone under the action of gravitational forces. Even though we have tested its micro contents such as sand, cement, blue metal, and water. Slump cone test of concrete civil engineering lab experiment.
This report was initiated by a concrete laboratory report brief given out by professor mark alexander in the civ5002z. To carry out the slump test, the fresh concrete mix was poured into a truncated cone. The slump test is used to ensure uniformity for different loads of concrete under field conditions. Concrete slump test or slump cone test is to determine the workability or consistency of concrete mix prepared at the laboratory or the construction site during the. In the second batch a aircontent and a massunit volume test was conducted with. After the material is introduced into the water, the mixing speed in increased from 1,200 rpm to 15,000 rpm for 1 minute. Hence, an accurate prediction of this property is a practical need of construction engineers. This test can be used to measures consistency between the individual batches. A slump test is a method used to determine the consistency of concrete. Slump test doesnt give accurate results for the low workability of concrete when the slump is slump test or slump cone test is to determine the workability or consistency of concrete mix prepared at the laboratory or the construction site during the progress of the work. Astm c231 standard test method for air content of freshly mixed concrete by the pressure method duration.
If the slump test result is outside of the slump range, correct before placing th e concrete in the work. A separate test, known as the flow table, or slumpflow, test, is used for concrete that is too fluid workable to be measured using the standard slump test, because the concrete will not retain its shape when the cone is removed. The remaining paste is remixed at 15,000 rpm for 1. Slump and kelly ball testing would be performed to investigate workability of mixture. The cone was then removed and the slump was measured using a tamping rod and a metre rule as shown in. No matter, slump test is a leader among the above tests. Def12the slump test results in various shapes, and according to the profile of slumped concrete, the slump are usually specified at true slump, shear slump or collapse slump.
Lab report on concrete of concrete 1284 words bartleby. The slump test is a practical means of measuring the workability. Concrete slump test is carried out from batch to batch to check the uniform quality of concrete during construction. Slump test can be done on site to check the concrete mix has expected fluid properties. Nov 19, 2015 slump cone test of concrete civil engineering lab experiment. The concrete slump test is an onthespot test to determine the consistency as well as workability of fresh concrete. Lab report4989259 lab report for construction materials. Slump test concrete building engineering free 30day. Properties of fresh and hardened concrete lab report. The common factor among sources is the reproduction of pain as tension is applied to the dura during testing. In total, 4 cubes and 2 cylinders would be cast for calculating compressive stress of concrete specimen.
1343 990 184 664 838 786 1553 260 962 440 936 633 264 71 1473 1408 368 1552 306 193 1161 766 743 957 1215 1391 120 752 744 697 968 1428 519 465