CALIFORNIA BEARING RATIO(CBR)

Description: CALIFORNIA BEARING RATIO(CBR) 

As per IS:2720(PART-XVI)

The C.B.R method is used for finding the relative bearing ratio and expansion characteristics of soil of base, sub-base and sub-grade for the design of roads, pavements and runways. Test can be made on all types of soils including sand, gravel crushed stone etc. (passing through 20 mm IS Sieve).C.B.R. test is used extensively for Selection of materials and control of sub-grades.

The procedure of test is very simple. A 50 mm dia. Penetration piston is forced in the test soil and loads required for the penetration to penetrate Different depths are recorded by means of a Proving ring fixed to the penetration piston assembly and a dial gauge,

* Loading Frame Mechanical, Hand Operated, (50KN)                               CODE:18018-00

* Loading Frame Motorised with Crompton Motor, Single speed of 1.25 mm/min. (50KN).                                                                                                                                         18018-01

ACCESSORIES:

* CBR Mould 150mm dia x 175mm high complete with base plate & collar 150mm dia. x 50mm high made of MILD STEEL. 18018-02

* Penetration Piston face dia. 50mm 18018-03

* Displacer Block 148mm dia. x 47.7mm long. 18018-04

* Surcharge weight 2.5 kg with a central hole. 18018-05

* Surcharge weight 2.5 kg Slotted. 18018-06

* Surcharge weight 5 kg with central hole. 18018-07

* Surcharge weight 5 kg Slotted. 18018-08

* Perforated Brass Plate with locknut stem. 18018-09

* Tripod 18018-10

* Cutting Collar 18018-11

* Rammer 4.89 kg & 450 mm fall. 18018-12

* Rammer 2.6 kg & 310 mm fall. 18018-13

* Dial Gauge .01mm x 25mm travel. 18018-14

* Proving Ring Capacity : 1000Kg (10KN) 18018-15