To get a standard for free you will need to get it from someone who has it, which generally breaches the license agreement for buying the standard. Determination of rebound number slump bs bs 1881102. Determination of rebound number slump bs bs 1881 102. Pundit lab ultrasonic concrete tester introduction the pundit lab is an ultrasonic pulse velocity upv test instrument which is used to examine the quality of concrete. Recommendations for surface hardness testing by rebound hammer from the open bs standard webstore. Humboldts concrete rebound hammer provides a reliable, yet economical, alternative to the original schmidt hammer. Recommendations on the use of electromagnetic covermeters british standard description of types, applications, calibration, methods of use to measure cover and bar size. Pdf pull off test to evaluate the compressive strength of. Feb 25, 2007 put bs 1881 in the search bar for document number, it is the last one listed in page 5 of the search results.
All bsi british standards available online in electronic and print formats. Recommendations for surface hardness tests by the rebound hammer, bsi, uk, 1986. Construction practices and inspection pavements, aci. Download bs standard, bs codes, bsi publications which published by british standards institution for free page 3 of 4. Types of rebound hammers several hundred thousands of schmidt rebound hammers are in uses worldwide baumann, 2006. Concrete defects inspection and diagnosis springerlink. Content provider british standards institution bsi. Proceq offers an extensive range of transducers for the pundit pl200 providing highest accuracy and a proven field track record. Part 203, recommendations for measurement of velocity of ultrasonic pulses in concrete, british.
Recommendations for surface hardness testing by rebound hammer from the open bs standard. With the direct method, in the laboratory, this test shows a coefficient of variation of about 22. Description of types, applications, calibration, methods of use to measure cover and bar size. Our policy towards the use of cookies techstreet, a clarivate analytics brand, uses cookies to improve your online experience. Guide to the use of nondestructive methods of test for hardened concrete. Pull off test to evaluate the compressive strength of. Concrete, by nature, is a nonuniform, nonisotropic structural material consisting of aggregate particles, air voids and moisture distributed heterogeneously in a hardened matrix. This part of bs 1881 gives recommendations on tests that are designed to assess the strength of concrete by causing localized failure in a small zone, typically up to 75 mm from the surface, according to the method. Nondestructive testing of concrete by rebound hammer. Review of the rebound hammer method estimating concrete. En 125042, env 206, din 1048 part 2, bs 1881 part 202, astm c805, astm d5873 rock, d5873, jgjit 232001, jjg 817 1993 specifications. Cp 102 protection of buildings against water from the ground.
Data collection and processing of test results comply with industry standards such as astm c805 en 125042 bs 1881 part 202 din 1048, part 2 a 83. Pdf concrete strength by combined nondestructive methods. The amount of readings in each slab was defined by recommendations of bs 1881. Documents sold on the ansi standards store are in electronic adobe acrobat pdf format, however some iso and iec standards are available from amazon in hard copy. Bs 1881202 1986 testing concrete part 202 recommendations. Method for determination of static modulusof elasticity in compress. After a period of time enough to cure the epoxy resin used for bonding the discs, a tensile force is applied to the disc using a portable mechanical system figure. Recommendations for surface hardness testing by rebound hammer. Part 122, method for determination of water absorption, british standards institution, london, u. Home shop products tagged bs 1881 part 203 bs 1881 part 203. Download bs codes page 3 of 4 civil engineering community. Experimental study on the compressive strength of big. Part 202, isoidis8045, env 206, igjt 232001 the original schmidt hammer, type n, is designed for nondestructive testing of concrete items 4 100mm or more in thickness, or concrete with a maximum particle size less than or equal to 1. With the iso17025 accreditation, teca has a laboratory that ranks among the most wellmanaged and technically advanced in brunei.
The test is classified as a hardness test and is based on the principle that the rebound of an elastic mass depends on the hardness of the surface against which the. Another factor in the sizing of the slabs is the recommendation from the standard that discs should be set at a minimum of two diameters to each other and positioned at a distance of a diameter from the edges of the element to be tested. Scribd is the worlds largest social reading and publishing site. The energy absorbed by the concrete is related to its strength aci, 1994. Recommendations on the use of electromagnetic covermeters. The test is classified as a hardness test and based on the principle that the rebound of an elastic mass depends on the hardness of the surface against which the mass impinges. Recommendations for measurement of velocity of ultrasonic. Recommendations for the assessment of concrete strength by neartosurface tests, british standards.
Part 202 5 indicates that the coefficient of variation for individual. The rebound hammer test is described in astm c805 and bs 1881. Guide to the use of nondestructive methods of test for hrdened concrete. Correlation between schmidt hammer and destructive. Part 202 4 suggests that the estimation by means of ultrasonic pulse velocity or any measured number is an indication of about the first 30mm other. Recommendations for surface hardness testing by rebound hammer schmedt hammer bs en bs en 125042. Pull off test to evaluate the compressive strength of concrete. Put bs 1881 in the search bar for document number, it is the last one listed in page 5 of the search results. It is designed for testing concrete 4 100mm or more in thickness with a maximum particle size less than or equal to 1. Free download bs 1881 pdf standard from public digital library. We are confident that we are able to handle your geotechnical and environmental laboratory testing needs.
Dec 03, 2003 determination of asreceived, saturated and oven dried densities of concrete specimens. Astm c80585, test for rebound number of hardened concrete. Amd 6098 published 31 july 1989, amd 6721 published 31 july 1991. In 1954 proceq sa was founded and has been producing the original schmidt rebound hammers since then, without any. Recommendations on the use of electromagnetic covermeters concretes, reinforced concrete, reinforcement, electromagneticallyoperated devices, electromagnetic induction, detectors, meters, measuring instruments, test equipment, calibration, testing conditions, accuracy, ferrous metals, thickness measurement. Recommendations on the use of electromagnetic covermeters british standard description of types, applications, calibration, methods. In place methods for determination of strength of concrete. Bs 70 1979 specification for low heat portland cement. Bs en 12152 curtain walling air permeability performance requirements.
Revised cpwd specifications, 2002 for cement mortar, cement concrete and rcc works. In this method, the traction is axially transmitted to a metallic disc bonded beforehand into the concrete surface. Methods for analysis of hardened concrete british standard available for subscriptions. Part 2021986, recommendations for surface hardness testing by rebound hammer. Among the available nondestructive methods, the rebound hammer is the most commonly used one in practice. Pdf pull off test to evaluate the compressive strength. Bs 1881202 1986 testing concrete part 202 recommendations for.
Gives basic principles and influence of test conditions, including reinforcement. Bs en 123903 2009 testing hardened concrete part 3, compressive strength. Part 202 1986, recommendations for surface hardness testing by rebound hammer. Amd 6659 published 28 february 1991, amd 6766 published 30 august 1991. Portable nondestructive concrete testing instruments proceq. Bs en 12380 2002 air admittance valves for drainage systemsrequirements, test. Scope this part of this british standard describes a method for the determination of the static modulus of elasticity in compressionof hardened concrete, on test specimens which may be cast or taken.