Prepare a leveled surface and place the flow table on the surface. The difference between the slump flow and jring flow is an indication of the passing ability of the concrete. This delay in placing concrete is extremely important when the test is on the first load of concrete of the day. Standard slump cone 200mm by 100mm by 300mm was filled with concrete and the mean diameter of the spread known as.
For flow values exceeding 35 seconds, use the flow table. Astm c939 c939m 16a standard test method for flow of. The compression test measures concrete strength in the hardened. The flow table test of cement mortar is done only to calculate the amount of water required for gauging for conducting strength test of masonry cement and for drying shrinkage test of cement. Selfconsolidating concrete for precast structural applications by eric p. Tests on concrete concrete slump test, compression test for. However, slump flow test is not yet incorporated in indian standard code of practice. It is not applicable to selfcompacting concrete, foamed concrete or nofines concrete, nor to concrete with maximum aggregate size exceeding 63 mm. Slump flow test on self compacting concrete for workability. To design the asphalt concrete mix using marshall method. Most concrete must be compacted after it has been placed in the. Beyond these extremes the flow table test may be unsuitable and. Different test methods for workability measurement depending upon the water cement ratio in the concrete mix, the workability may be determined by the following three methods.
Improper molding of the specimens may result in honeycombed sections in specimens. Aci 237r07, american concrete institute california test 521 caltrans ssp s8c20 self consolidating concrete for precast bridge elements nchrp report 62pnchrp report 62p self consolidating concrete for precast bridge elementsself consolidating concrete for precast bridge elements. It was first developed in japan for use in assessment of underwater concrete. Equivalent flow capacity of various pipe materials design of a nonpressure sewerage system requires selection of adequately sized pipe to carry maximum predicted flow, at a given slope, without flooding. Designated concretes can only be supplied by readymixed concrete companies who have a suitably high. This standard covers the test method for slump flow of selfcompacting concrete with a maximum coarse aggregate size of 40 mm or less. Flow table test is also used to identify transportable moisture limit of solid bulk cargoes. C 939 pdf 297 kb fop for astm for flow of grout for preplacedaggregate concrete flow cone method c 1611 pdf 207 kb fop for astm c 1611c 1611m standard test method for slump flow of selfconsolidating concrete. Selfconsolidating concreteconsolidating concrete for precast. Sep 12, 2014 this test method is applicable for laboratory use in comparing the passing ability of different concrete mixtures. Upon request one of the companys field testing officers will go to the job site, measure the slump of the concrete, cast cylinders for either compressive or indirect tensile brazil test strength, or cast beams for flexural.
Compressive strength testing done at age of 1, 3, 7, 28 and 90 days. The flow test is sensitive to changes in the consistency of concrete, which correspond to flow values between 340 mm and 620 mm. T is the diameter of the concrete circle is a measure for the filling ability of the concrete. Use a damp cloth to clean the top of the table and the inner. Pdf scc concrete has high fluidity that is able to flow and to pass. This video animation, animated video explains the procedure for determination of workability of concrete by flow table test.
Specifications for concrete normally include a requirement for a certain design strength level for test cylinders cured for 28 days, or they are based on a prescription of a specified cement content. The previously standardized flow test astm c12471 was withdrawn once in. Flow of concrete is reported as the percentage increase in average diameter of the spread over the base diameter of the cone 250 mm in this case. It is used primarily for assessing concrete that is too fluid workable to be measured using the slump test, because the concrete will not retain its shape when. Scc jring test updated concrete construction magazine.
Guide to evaluation of strength test results of concrete aci 214r11 3 s sample standard deviation, an estimate of the population standard devi ation, also termed s overall s statistical average standard deviation, or pooled standard deviation. Concrete flow workability test using flow table test according en 12350 standard. V funnel test and v funnel test at t 5 minutes on self compacting concrete. A separate test, known as the flow table, or slump flow, test, is used for concrete that is too fluid nonworkable to be measured using the standard slump test, because the concrete will not retain its shape when the cone is removed. Wsdot fop for astm c 1611 standard test method for slump flow of selfconsolidating concrete 1. For other types of grouts without aggregate, or only fine aggregate passing a no.
Inspection manual for selfconsolidating concrete in precast. Guide to evaluation of strength test results of concrete. Sampling the first step is to take a test sample from the large batch of concrete. Workability testing for selfcompacting concrete slump flow test freshly mixed concrete was subjected to standard and nonstandard tests to evaluate the workability, bleeding capacity, and segregation potential. An alternative type of vfunnel, the o funnel, with circular. Flow table test to measure the flow value of concrete. It is therefore important that the consistency of the mix is such that. In particular a the slump flow provides a test for concrete mix of very high workability b the chloride penetration test provides a test for measuring the durability of concrete against chloride attack c the ambt provides a test for measuring the. The slump flow test is used assess the horizontal free flow of self compacting concrete in the absence of obstructions. Scope this standard covers the test method for slump flow of selfcompacting concrete with a maximum coarse aggregate size of 40 mm or less. It is also applicable in the field as a quality control test. Concrete is bought and sold by the cubic metre volume of the freshly mixed ingredients.
Compaction of concrete is, therefore, a twostage process figure 1. The 700 mm square flow table is hinged to a rigid base, proved with a stop that allows the far end to be. The slump test is used to ensure uniformity for different loads of concrete under field conditions. It is important to recognise the two stages in the compaction process because, with vibration. May 20, 2018 this video animation, animated video explains the procedure for determination of workability of concrete by flow table test. It is used primarily for assessing concrete that is too fluid workable to be measured using the slump test, because the concrete will not retain its shape when the cone is removed. The steel cone, part of the apparatus, has a top dia. The last 5 conditions affect the quality of the concrete in both the structure and in the specimens. The equipment for v funnel test on self compacting concrete consists of a v shaped funnel as, shown in fig. Slump test, vebe test and flow test are all covered in indian standard code of practice is. Summary of concrete workability test methods research report icar 1051 sponsored by the aggregates foundation for technology, research and education. Flow table test for concrete test for workability of.
Slump test suitability this method is suitable only for the concrete of high workability. The compression test measures concrete strength in the hardened state. The top table is covered with an inscribed metal plate 2 mm thick. The slump test is done to make sure a concrete mix is workable.
The apparatus consists of a double wooden table measuring 700x700 mm hinged at one side. Properties of fresh concrete university of washington. Fowler center for transportation research the university of texas at austin august 2007. 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. Flow table test of concrete also determines the quality of concrete concerning its consistency, cohesiveness and the proneness to segregation. Results will provide comparative data to analyze and determine the.
Despite their inherent limitations, singlepoint workability tests continue to be used for the specification and quality control of concrete. Standard test method for flow of hydraulic cement mortar. Beyond these extremes the flow table test may be unsuitable and other methods of determining the consistence should be considered. Note the flow test is sensitive to changes in the consistency of concrete, which correspond to flow values between 340 mm and 600 mm. Tool universal testing machine utm is used for testing the. Workability measures how easy the concrete is to place, handle and compact. Badger meter concrete products represent a range of technologies, including flow meters, dispensing and batching equipment and concrete consolidation tools, for a variety of applications including redimix, truck meters and concrete finishing. Under con tinuous favorable conditions, concrete continues to gain strength indefinitely. First the aggregate particles are set in motion and slump to fill the form giving a level top surface. Selfconsolidating concreteconsolidating concrete for. If more than one type of pipe is considered, all pipe sizes of the various materials must have equivalent flow capacity. As the name suggests, in this test the workability of concrete is determined by examining the flowing property of concrete.
Inspection manual for selfconsolidating concrete in precast members product 054p1 txdot project 054. The measured slump must be within a set range, or tolerance, from the target slump. Slump flow test and t 50 cm test on self compacting concrete. Chapter 9 standard test procedures tests on concrete may 2001 page 9. Testing for slump flow concrete in accordance with bs en 12350 part 8 find more information about flow concrete here. The test was developed in japan and used by ozawa et al. En 123505 the test set is used for concrete mixes of high workability and determines flow index as an arithmetic mean of the diameter of the specimen after working on a flow table. Mar 18, 20 testing for slump flow concrete in accordance with bs en 12350 part 8 find more information about flow concrete here. Pdf conventional singlepoint workability tests continue to be used for specification and quality control of concrete despite their inherent. Flow table test of concrete to test workability of concrete. The slump flow test see figure 1, using the traditional slump cone, is the most common field test and is in the process of being standardized by astm. 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. The flow table test or flow test is a method to determine consistency of fresh concrete. Inspect all materials used in the construction of concrete work at their source, on the job, or both.
Compressive strength test, a cylindrical specimen with a size of 10 mm x 20 mm. The concrete slump test is an onthespot test to determine the consistency as well as workability of fresh concrete. Nemati winter quarter 2015 5 cm 425 concrete technology 9 slump test cm 425 concrete technology 10 properties of fresh concrete the most important properties of fresh concrete are thus associated with its workability and consistency. Systematic testing of the raw materials for concrete as also, the concrete, both while it is fresh and after it has hardened, is an inseparable part of any quality control programme for concrete. The compression test shows the best possible strength concrete can reach in perfect conditions. Nd t 245 resistance to plastic flow of bituminous mixtures using marshall. Nd t 27 sieve analysis of fine and coarse aggregates. The flow test is used for high workability concrete with a slump of more that 175 mm. Standard slump and flow table tests objective to determine the reference slump value for kistner concrete mix design and to calibrate it against an equivalent measure using a flow table. Concrete flow table test set utest material testing equipment. Civil engineering animated videos, civil engineering videos social.
See chapter 2 concrete properties the compression test. Slump test compaction factor test veebee consistometer test 1. The test is carried out in accordance with bs en 123505, testing fresh concrete. It also gives us some idea on the workability of cement mortar. Cip 22 grout national ready mixed concrete association. The slump flow test involves filling a slump cone with scc, lifting the slump cone, and measuring the horizontal distance the concrete spreads.
Several test procedures have been successfully employed to measure the plastic properties of scc. Pdf self compacting concrete with tests find, read and cite all the research you need on researchgate. May 10, 20 objective for determination of consistency of concrete where the nominal maximum size of aggregate does not exceed 38 mm using flow table apparatus. Workability of concrete is mainly affected by consistency i. Pdf compressive strength and slump flow of self compacting. The development of stable, highworkability mixes with a collapsed slump has led to the use of the flow test, more popular in europe, and the slump flow test, used extensively in asia. The test assesses the flow of the concrete a nd also. The first 3 f actors do not affect the strength of the concrete in the structure, but cylinder test results do indicate lower strengths than the actual structure. Pdf correlating slump, slump flow, vebe and flow tests to.