Download scientific diagram test procedure for aggregate impact value. It can be used with glass and other container types to evaluate impact problems associated with bottle design andor production variations. The remaining procedure is same as described above for cc mould. The mould is kept on the centre of the table, firmly held and is filed in to layers. Clamp the latching tube to the bearing housings at. This document was produced under api standardization procedures that ensure appropriate notification and participation in the developmental process and is designated as an api standard. The concrete mixtures incorporate either basalt or crushed limestone, aggregate sizes of 12 mm h in.
As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any sizereduction requirements including, advantages of aggregate impact value. Unfortunately, this book cant be printed from the openbook. Aggregate impact value the aggregate impact value gives a relative measure of the toughness or the resistance of aggregate sudden shock or impact is not proportional to the resistance to a slowly applied compressive load. Aggregate impact value aiv impact impact test equipment. Astm d6760 16 standard test method for integrity testing. The standard rebound hammer provides a simple, easy and inexpensive method to estimate concrete strength properties. The particular purpose which an aggregate is meant to serve requires the aggregate to have a particular strength which is usually stated in the specification. Detailed directions on how to safely use this machine are provided below in the impact strength testing procedures pdf. Impact test equipment ltd stevenston industrial estate stevenston ayrshire ka20 3lr united kingdom. Introduction on aggregate impact testing machine ashian engineers company india by ashian team 2. Compact the material in 2250 cm3 volume of mould in five layers each layer being given 55 blows with 4.
Determination of aggregate impact value impact test on aggregates is done to carry out to. However, the results of the test on concrete are affected by various factors such as smoothness of the surface, geometric properties. Procedure a using a pycnometer, and procedure b using a water bath. An aggregate irt procedure for exploratory factor analysis article pdf available in journal of educational and behavioral statistics 404 july 2015 with 196 reads how we measure reads. This method of test lays down the procedure for determining the flakiness. The table top is cleaned of all gritty material and is wetted. Aggregate impact value test theory, procedure, apparatus and uses for pavement road, toughness is property of a material to resist impact. Measure these distances between the test pile face and. Due to traffic loads, the road stones are subjected to the pounding action or impact and there is possibility of stones breaking into smaller pieces. Farny2 abstract the mortar aggregate ratio test determines the amount of sand to cementatious materials in a particular mortar batch. The charpy unotch impact test basically comprises of the test sample jagged in the midpoint and supported at all ends the test piece which is machined all over has to be at least 55mm long, 10mm x 10mm cross section and in the midpoint of length of flat, there will be a u notch of 5mm deep with 1mm root range. Unconfined compressive strength ucs ucs tests were performed on soaked soil samples as per the test procedure stipulated in indian standard. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any sizereduction requirements including, advantages of aggregate impact value test, quarry, aggregate, and different kinds of minerals.
After calibrating the frame for the test hammer to be used during this experiment, the manual below describes the procedure to be selected for the sample being evaluated. Updates are made to the electronic file as needed and hard copies. The aggregate impact value gives a relative measure of the resistance of the aggregate to sudden shock or impact. An indextype test to measure cohesion potential of granular materials, known as the sand castle test, was developed by researchers at the university of london in the 1970s and 80s vaughan et al. When producer gradation test results are used for acceptance, test results representing at least 90% of the material being pr. The effects of aggregate type, size, and content on the behavior of normal and highstrength concrete, and the relationships between compressive strength, flexural strength, and fracture energy are discussed. Aggregate impact value aiv impact test equipment ltd.
Test procedure for coarsegrained soils the procedure to be used is similar to the procedure for finegrained soil with the following exceptions. Daily most nuclear gauges require a warmup period and standard count. Aggregate impact value apparatus with mould to bs812. For determination of the aggregate impact value of coarse aggregate, which passes 12. Aggregate impact value aiv test machine mechanical and. Pdf an aggregate irt procedure for exploratory factor analysis. Located these not less than 3 m or 10 pile diameters whichever is greater from the test pile or reference beam supports. Aggregate impact value test as per is code 2386 part4, hardness test of aggregate duration. Free software downloads we have just added a free download for our bm239 marshall test software. The aggregate impact test is carried out to evaluate the resistance to impact of aggregates. The test sample shall consist of aggregate the whole of which passes a 12. Aiv test is conducted to determine the aggregate impact value of coarse aggregate. Obtain at least three approximately equal increments, selected at random from the unit being sampled, and combine to form a.
Determine the impact value of the road aggregates, assess their suitability in. The apparatus of the aggregate impact value test as per is. Pdf an aggregate irt procedure for exploratory factor. In this video, we will see the procedure of determining aggregate impact value as per is 2386 part4.
Effect of basalt aggregates and plasticizer on the compressive. Impact test may either be carried out on cylindrical stone specimens as in page impact test or on stone 1aggregates as in aggregate impact test. In addition to the static load, such structures may be stressed with shortterm dynamic loads or even dynamic impact loads during their lifespan. The manual was prepared by committee c09 on concrete and concreteaggregates and has been accepted. The test piece is gripped vertically with the root of the notch in the same plain.
Six concrete properties are determined from each of two samples, compared to each other, and the property differences are determined. The aggregate impact value testing apparatus, meets with bs 812, it is robustly designed to determine the aggregate impact value aiv of aggregates which provides a relative measure of the resistance of an aggregate to sudden shock or impact. Fibrereinforced composite materials are becoming important in many areas of technological application. Feb 08, 2012 impact test may either be carried out on cylindrical stone specimens as in page impact test or on stone 1aggregates as in aggregate impact test. The aggregate comprising the test sample shall be dried in an oven for a period of four hours at a.
Test procedure for uniformity of concrete txdot designation. Aggregate impact value test apparatus, procedure and uses. Development of a test to determine cementation potential of. A catalog of api publications and materials is published annually and updated quarterly by api, 1220 l street, n. Jun 23, 2006 durability of industrial floors depends to a great extent on the quality of floor surface, which must be highly resistant to mechanical loads, chemical attack and other types of influence. Knab national bureau of standards washington, dc 20234 communicated by r. Laboratory assessment to correlate strength parameter from. Laboratory tests for predicting coarse aggregate performance in. The izod impact test consists of notched test piece 75mm long, 10mm x 10mm cross section.
Save page to pdf the page to pdf system has been restored. Is2720p10 the maximum load that can be transmitted to the sub soil. Aggregate impact test by fathin farhana yusof on prezi. Advantages of aggregate impact value test products. There are several ways how to test impact resistance of concrete and various groups. Click here to visit our new test sets site uk and b. Introduction on aggregate impact testing machine ppt. Determination of aggregate impact value impact test on. Aggregate impact value to bs812112 aggregates impact. Test method for measuring resistance of industrial floor. Find details of companies offering aggregate impact testing apparatus at best price. Aggregate impact test construction aggregate asphalt scribd. Aggregate impact value gives the relative strength of aggregates against impact loading.
Compressive strength of concrete cube test pdf, procedure, results. Standard test soils procedures manual subject modified. Result introduction measure of degradation of mineral aggregates of standard grading resulting from a combination of action including abrasion and grinding in a rotation steel drum containing a specific number of steel spheres. Impact testing of concrete using a dropweight impact machine. Pdf impact testing of concrete the measurement device. The number of impact blows delivered by a drop hammer are accumulated until the first visible crack occurs and until the test specimen is forced to separate by continued impacting.
Determination of the aggregate impact value of different coarse aggregate samples. The aggregate impact value gives a relative measure of the resistance of an aggregate to sudden shock or impact, which in some aggregates differs from its resistance to a slow compression load. A method for controlling compaction of granular materials herbert w. This method of test covers the procedure for determining the aggregate impact value of coarse aggregate.
Q061 materials testing manual, transport and main roads, november 2014. Development of a test to determine cementation potential. Determination of aggregate impact value impact test on aggregates. Pdf testing of ultra high performance fiber reinforced concrete under impact loading is described in this paper. Determination of aggregate impact value impact test on aggregates is done to. This video animation, animated video explains how to determine aggregate impact value aggregate impact test. Illinois test the manual will provide test procedures currently used by the department. Results of two different impact load tests carried out on dropweight test machine are presented in this report. Ruggedness testing of the mortaraggregate ratio procedure jeffrey h. Fix the proper striker to the bottom of the hammer with the help of clamping device. The aggregate comprising the test sample shall be dried in an oven for a period of four hours at a temperature of 100 to 110c and cooled. Aggregate impact value to bs812112 impact test equipment.
Determine the impact value of the road aggregates, assess their suitability in road construction on the basis of impact value. Methods of test for aggregates for concrete, part 4. Aggregate testing manual pdf representative sampling of soils, crushed rock and aggregates. Lightweight aggregate concrete under impact loading, beton. Durability of industrial floors depends to a great extent on the quality of floor surface, which must be highly resistant to mechanical loads, chemical attack and other types of influence. Ruggedness testing of the mortar aggregate ratio procedure jeffrey h. Introduction to durability and inplace infiltration of pervious concrete charles mitchell, p. In this work, the new method is shown developed specifically to test the. A method for controlling compaction of granular materials. The country or organisation of origin of each test method is indicated in brackets after each test name. The impact tester provides the means to apply a repeatable impact force to a defined area of a container for the measurement of impact resistance.
Uta0650 aggregate impact value aiv testing apparatus. If you need to print pages from this book, we recommend downloading it as a pdf. Each layer is rodded 25 times with a tamping rod 1. This test is done to determine the aggregate impact value of coarse aggregates. Toughness is the property of a material to resist impact. D676016 standard test method for integrity testing of concrete deep foundations by ultrasonic crosshole testing ultrasonic cross hole test augercast piles bored piles diaphragm walls ultrasonic probes dams drilled shaft.
The aggregate impact value is a determining measure of resistance to sudden impact or shock, which may differ from its resistance to gradually applied. 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. In order to choose the correct overlay material, it is necessary to define relevant characteristics and use reliable test methods. Repeat the procedure for compacting and moisture content determinations for each of the four samples i. How to determine aggregate impact value aggregate impact test. In all the above cases make at least five determinations and the range of moisture content shall be such that the optimum moisture content at which the maximum dry density occurs is within that range. The page impact test is not carried out nowadays and has also j.
284 557 389 1642 1541 672 711 1431 404 918 299 364 452 15 494 147 1634 199 1062 1298 1575 921 392 649 1143 1435 78 1333 1558 532 115 1298 387 1082 1319 688 31 277 253 278 706