Zeal International

The objective of the test method is to measure the working and ultimate capacities of rock bolt anchors. The system comprises of a central hole jack,hand pump with a load gauge, directional control value (only for central hole jacks above the capacity of 500 kn), flexible hose pipe 5 mts, truss high tensile bolts with coupling. In general the pull out force is indicated on the load gauge, however a load cell with digital indicator can be used to measure the pull out load. Arrangement is provided for fixing the dial gauge for estimating deflection against the load. These are used to measure the working and ultimate capacities of rock bolt anchors. Further, our products comprises of a central hole jack, hand pump with load gauge, directional control valve and only for central hole jacks above the capacity of 500kN, flexible pipes, truss high tensile test rod with coupling.Features:Type: Rock Testing InstrumentsExternal Size: Different Model Available

This bench mounted single spindle lapping machine is Ideally suited jar the final polishing of mounted rock or concrete specimens. Two sample holders of sample size ordered for are provided with each machine as standard supply Sample holders of other size can also be provided on request. A swing-in tap, for continuous water supply during operation is also provided.

Features:

Compact table model

20 cm dia top and Adapter to hold polishing cloth or paste

Sample Holders to accommodate upto NX size Cores

Continuous water feed arrangement during operation

This unit is operated on Single Phase:

ZI 6007-A Sample Holder for Ex size

ZI 6007-B Sample Holder for Ax size

ZI 6007-C Sample Holder for 38mm size

ZI 6007-D Sample Holder for Bx size

ZI 6007-E Sample Holder for Nx size

Hoek Cells have been designed to be used for triaxial testing of rock specimens. Hoek Cells comprise a steel body complete with two quick release self-sealing couplings, two steel end caps which are screwed to the cell body, 2 pieces of upper and 2 pieces of lower loading caps with spherical coupling and a rubber sealing sleeve to separate the specimen from the cell fluid.

We are the manufacture of Hoek Triaxial:

• ZI 6015 Hoek Triaxial Cell BX, 42.04 mm dia.
• ZI 6015-A Spare Sealing Sleeves dor Hoek Triaxial Cell BX
• ZI 6015-B Hoek Triaxial Cell NX, 54.7 mm dia.
• ZI 6015-C Spare Sealing Sleeves for Hoek Triaxial Cell NX
• ZI 6015-D Hoek Triaxial Cell HQ, (63.5 mm)
• ZI 6015-E Spare Sealing Sleeves HQ, (63,5 mm) for Hoek Triaxial Cell

This test method has been developed to assess the deterioration of rock sover a period of time when subjected to water immersion. Slake durability is a simulated weathering test to determine abrasion resistance during wetting and drying cycles of shale and similar soft rocks as used in embankments and other construction-related applications. Samples are alternately tumbled in mesh drums through a water medium and oven-dried for two cycles. The percent loss of mass is referred to as the slake durability index

Other Details:

• The ZI 6012 slake durability apparatus consists of a motorized drive unit which is mounted on a base plate and which can rotate two or four drums at a speed of 20 r.p.m.
• The tank assemblies are filled with water to a level 20mm below the drum axis.
• The test drums are manufactured from 2.00 mm mesh, 140 mm dia. X 100 mm long.
• ZI 6012 Plake durability apparatus, 220-240 v 50 hz
• ZI 6012-A Pair of mesh drums for ZI 6012

Point Load Index Tester, a rock testing instrument for determining the Diametrical Point Load Strength Index of rock cores and Irregular Lumps which may be tested without any treatment. The Point Load Test is primarily as index Test for strength classified of rock materials. This instrument is mainly intended for field measurements on rocks specimen, but it can be used in the laboratory. The results of the test may also be used to predict the uniaxial compressive strength of rock from correlations. The apparatus is light and portable and can be used in the laboratory as well as in the field.

Features:

• Equipment is light and portable
• Rock core specimens can be tested without any preparation
• The instrument can be used in the laboratory as well as at the drilling site
• The results of the test may also be used to predict the uniaxial compressive strength of rock.
• With this instrument, a wide range of core size can be tested
• The frame has adequate adjustments to align perfectly the loading axis passing through the centre of the bearing plates and loading platens at the position of the ram of the hydraulic jack.

The equipment comprised the followings:

• ZI 6009-A- Loading Frame, fitted with Hydraulic Jack,hand operated, capacity 100 KN (10,000 kgf)
• ZI 6009-B - Load Gauge, 25KN (2,500 kgf) to readupto 0.25KN (25kgf)
• ZI 6009-C - Load Gauge, 100KN (10,000 kgf) toread upto 0.50KN (50kgf)
• ZI 6009-D - Conical Loading Platens
• ZI 6009-E - Diaphragm Bolt

This equipment is used for determining unconfined compressive strength of intact rock core specimens. The rock sample is cut to length and the ends are machined flat. The specimen is placed in a loading frame and if required heated to the desired test temperature. Axial load is continuously increased on the specimen until peak load and failure are obtained.

The equipment consist of the following replaceable parts:

• Load frame, 200 kn capacity 12 speed from 0.0064 to 1.25 mm/min
• Proving ring, 200 kn with calibration certificate
• Dial gauge 25mm travel, 0.01mm least count.
• Platen set as per ASTM 2938 requirements
• Platen set as per ASTM 2938 requirements
• Can test AX, BX, NX rock specimen upto 100 mm

The Apparatus are used for determining the bond strength between anchored reinforcing steel bar (rebar) and concrete and for checking anchorage performance in-situ. Battery Operated Digital Readout Unit connected to a 30 tons capacity hydraulic jack and hand pump provides 1 % sensitive load or tensional strength value readings. The apparatus is supplied complete with three different jaw sets which allows user to test anchorage rebar with different diameters. These jaws are made of high strength steel.

Digital Point Load Test Apparatus consists of a 60 kN capacity load frame with a hydraulic loading ram driven by a hand pump. The frame is adjustable for testing of samples up to 102mm diameter. A ruler assembled on the frame allows the direct measurement of the distance between the conical platens before and after the test. The compression load is measured by a pressure transducer connected to an advanced digital display unit assuring the best accuracy and resistance to the failure shocks.

Safety Features:

• Load pacer included
• Load measurement in both kn and mpa
• Serial port for pc connection

The instrument is useful for testing specimen from 50mm dia to 100mm and of thickness of half the diameter. This is to test for indirect measurement of tensile strength of rocks. The specimen is held in circular jaws, this is primarily similar to a compression machine and consists of a small load frame having sturdy base with two vertical threaded rods and an adjustable cross head. The hydraulic jack is fitted at the centre of the base of the load frame. The jack of the load frame is self retracting and two plain platens are supplied. A pressure gauge capacity 0-100 kn x 1 kn is fixed at the base of jack. A maximum pointers is also provided on the gauge, a pair of semi circular platens for 50mm dia samples also provided. The instrument can be used in field also.

Driven by electrical motor or by engine as per customers requirement. The trolley in which the engine is fitted is supplied with cooling arrangements with the help of a water tank. Arrangements to control the depth is also provided. A safety guard is also provided on the diamond blade. Two wheels are provided for easy movability of the machine.

The automatic grinding machine provides fast grinding of cylinder specimen ends to obtain plane and parallel surfaces according to EN and ASTM standards. Three units of ø38 to 100 mm or two units of ø150-160 mm concrete cylinders ends can be ground simultaneously with the suitable cradle and water restraint panel. The length of the any specimen must be longer than 70 mm. According to ASTM and EN standards, the planeness accuracy of grinded surface is 0.05 mm. and the deviation of perpendicularity of the side with reference to the end faces is 0.5o. The equipment has selectable advance grinding time functionality by user from 50 to 400 seconds. Optimum grinding time per end of all type specimens is 90 to 120seconds. The cradle which specimens are fixed on has automatic bidirectional radial displacement ability. The safe and ergonomic design prevents the user to exposure to water and dust and provides easy access to the water inlet and outlet.Specimen cradles and water restraint panels can easily be installed without the need for any assembly. Mobility of the machine is achieved with the help of the integral wheels, and all components of the system can be safely accessed for easy maintenance. The frame is manufactured from aluminum to obtain a lighter weight and the stainless steel exterior shell assures resistance to corrosion. The water restraint panels should be ordered separately for cubic specimens or different sized cylindrical specimens.

Features:

• The preparation of concrete cylinder test specimen for compressive strength test: EN 12390-1, 12390-3, ASTM C31, C39, C192, C617
• The maximum tolerance on the flatness of the potential load bearing surfaces (the ends of compression test specimens) is 0.002 in. [0.050 mm]
• The preparation of drilled concrete cores specimen for compressive strength test: EN 12504-1, 12390-1, 12390-3 ASTM C42, C397
• The deviation of perpendicularity of the side, with reference to o the end faces is 5