plate bearing test and the Benkelman beam test for predicting the allowable spring load, and to determine the relationship of the two test methods to load carrying capacity, pavement structure, and performance of county roads and municipal streets in Minnesota. CALCULATIONS 4.1 The rebound deflection of the pavement shall be calculated in the following manner:** (a) Two pavement rebound indicators shall be established by … For measuring the deflection of flexible pavement under the action of moving wheel loads. 2.3.1 The Contractor shall test the sealed surface with a standard Benkelman Beam test apparatus. This instrument is available M.E.R.I. Pavement deflection is measured by the Benkelman Beam which consist of slender beam 3.66m long pivoted at a distance of 2.44m probe point. The Benkelman Beam is used with a loaded truck – typically 80 kN (18,000 lb) on a single axle with dual tires inflated to 480 to 550 kPa (70 to 80 psi ). BENKELMAN BEAM / BI-450. H-3221HA Digital Indicator, Horizontal.
: 5 kg
Adjustable feet for Benkelman beam, complete with two spirit level Calibration device 80-B0180/3 Calibration device for 35-T1100/BF Benkelman beam apparatus.
Benkelman Beam Test Wikipedia October 30, 2016 - by Arfan - Leave a Comment Ductilometer pinzuar beam aratus sm1004 materials testing tecquipment words2 134wo2923jn7 thermal resistivity falling weight deflectometer constrologix pvt ltd construction quality urance The deformation or elastic deflection of pavement under a given load depends upon sub grade soil type, its moisture content and compaction, the thickness and quality of the pavement course, drainage conditions pavement surface temperature etc. TNZ T/1 June 1977 SP/ST1:77XXXX STANDARD TEST PROCEDURE FOR BENKELMAN BEAM DEFLECTION MEASUREMENTS Page 4 of 5 Pages (S - I) and (S - F) XT = 2(S - F) X(T) = 2(S - F) + 5.82 (I - F) 110 20 - t X20 = XT + 4.
We also offer survey services include BBD (Benkelman beam deflection studies) along with the estimation of characteristic deflection calculations based on IRC-81, 1997.
This instrument gives us reading in millimeters. It is widely used all over the world evaluation of the requirements of strengthening of flexible pavements. …
A falling weight deflectometer (FWD) is a testing device used by civil engineers to evaluate the physical properties of pavement.FWD data is primarily used to estimate pavement structural capacity for 1) overlay design and 2) to determine if a pavement is being overloaded.
H-3222.XX Dial Indicator, Vertical. Alumunium strip arm, 1:2 level ratio …
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