Concrete slump test is carried out from batch to batch to check the uniform quality of concrete during construction. And more importantly, the stepbystep procedure of slump test followed by the list of cautions during the test and way to measure the workability from the test result. 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. Mar 09, 2017 the slump test is perhaps the most widely used because of the simplicity of the apparatus required and the test procedure. If the slump test result is outside of the slump range, correct before placing th e concrete in the work. The slump test indicates the behavior of a compacted concrete cone under the action of gravitational forces. The test procedures are published in pdf format and may be accessed and printed upon acceptance of this agreement. How we measure reads a read is counted each time someone views a publication summary such as. The stiffness of the concrete mix should be matched to the requirements for the finished product quality. The examiner then places hisher hand on top of head and has the patient perform knee extension, and dorsiflexion of foot.
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. Creep in concrete and effects of creep of concrete. The concrete slump test is referred to in several testing and building code, with minor differences in the details of performing the test. Slump is a measurement of concretes workability, or fluidity. You know, this tape is always making the fans to be dizzy if not to find.
It is important that the process of conducting acceptance testing and the responsibilities of all involved parties for. The discussion in this manual is divided into three parts viz. Slump test doesnt give accurate results for the low workability of concrete when the slump is slump test practices. Methods for measuring workability of concrete slump. Tests on concrete workability tests slump cone test, compaction factor test. Test procedures texas department of transportation. Lab manual of concrete technology sanjay ghodawat group of. It is hoped that this instruction manual will serve to orient the students in performing the test and preparing the report as per the codal provision. But here, you can acquire it easily this lab manual highway engineering to read. This is a measure of the relative fluidity or mobility of the concrete mixture. Slump does not measure the water content or workability of the concrete. To determine the workability or consistency of concrete mix.
The examiner instructs to the patient to flex hisher spine slump, followed by neck flexion. Compaction factor test of concrete for low workability concrete. The mini slump test is performed for the analysis of flow behavior of cement to check the workability, according to standard astm. This test plays a vital role in ensuring immediate concrete quality in a construction project. Flexural strength of concrete objective the objectives of the tests are to determine the properties of concrete as follows. The students need to perform test for the better understanding of the processes. By downloading files from this ftp service, you are agreeing to this license agreement. 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. Perform a slump test using the procedure given below.
Workability, slump and compacting factor of concrete with 19 or 38 mm 34 or 1 1 2 in maximum size of aggregate. It should be done during practical hours if possible or afterwards, but immediately. For the love of physics walter lewin may 16, 2011 duration. Patient is seated upright with hands held together behind hisher back. Scope this test method, which is a modification of astm c143 and aashto t119, is intended to provide the user with a procedure to determine the slump of plastic portland cement concrete. Apr 23, 2015 students practice concrete slump test at et lab. Vebe test hardened concrete tests to destruction consists of. Nowadays, this test is commonly replaced by the slump test to. Technical report pdf available october 20 with 20,565 reads. Download file pdf lab manual highway engineering you are in reality dying of pdf, just pick it.
All acceptance testing of concrete must be conducted in accordance with established standards referenced in contract documents. This test is used to determine the consistency of concrete. Any deviation from standard procedures is adequate reason for invalidating test results so obtained. Sampling the first step is to take a test sample from the large batch of concrete. 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. Concrete is placed into a cylindrical steel mold with an inner diameter of 36 mm. Study all the questions given in the laboratory manual and write the answers to these. The flow table test procedure does not conform with astm standard and is as follows. Measurement of workability of concrete by slump cone test 28. The consistency, or stiffness, indicates how much water has been used in the mix.
The slump is generally specified in the project documents. Concrete lab manual concrete building materials scribd. The compacting factor test is performed to find out the workability of concrete. A slump test is a method used to determine the consistency of concrete. The texas department of transportation txdot does not provide technical support with respect to these files. Strength of materials lab manual pdf sm lab manual pdf file please download the strength of materi. The concrete slump test is an onthespot test to determine the consistency as well as workability of fresh concrete. Site slump test the slump test is a means of assessing the consistency of fresh concrete. Slump and kelly ball testing would be performed to investigate workability of mixture. Field concrete technician study guide 9 gdt 27 slump of portland cement concrete the purpose of the slump test is to determine the consistency of the concrete. Even with the increase in knowledge of concrete rheology, the slump test remains. Should not hesitate to askconcerned teacher laboratory assistants about any difficulty faced during conduct of practical.
Standard test method for the slump of hydraulic cement concrete. This test method determines the amount of material finer. This method is considered applicable to plastic concrete having coarse aggregate up to 1. Lab manual procedure for conduct of practical subject. Concrete slump test theory and lab test civil engineering.
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. Lab report 1 in a table, display the actual amount of material used and the theoretical calculated amount of material used. Pdf concrete technology is a preliminary subject in the undergraduate course of bachelor of technology programme of civil engineering curriculum. Veebee consistometer test, flow table test, strength tests compressive strength. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. As known, in imitation of you entrance a book, one to recall. Concrete laboratory manual ce592 department of civil engineering sir j.
Never take the sample from the first concrete out of the mixer. Concrete lab testing melbourne school of design new building construction footage by prof. Inspect all materials used in the construction of concrete work at their source, on the job, or both. The reference indian standard codes followed with the test. It is used, indirectly, as a means of checking that the. The slump test is a practical means of measuring the workability. Concrete laboratary instruction manual for iv semester b. Concrete slump testing is used to evaluate the flow characteristics of freshly mixed concrete. Specific gravity and water absorption of coarse and fine aggregate. This test is used to determine and monitor the consistency of plastic hydraulic cement concrete containing coarse aggregate up to 37. Concrete slump test for workability procedure and results. If the slump test is to determine whether or not the concrete is to be accepted, the sample must be taken from the early part of the load. The water content was adjusted to compensate for the dry gravel and sand used in the lab. Iron pan to mix concrete, weighing machine, trowel, slump cone, scale and.
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