CORECASE

CORECASE

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CORECASE

Purpose

CORECASE is a portable light weight coring rig for quickly obtaining drilled cores that are accurate in diameter, have straight sides, and are perpendicular to the surface. In addition to determining in-place compressive strength, drilled cores can also be used for the following purposes:

  • Verification of flaws identified by NDT methods such as the s’MASH impulse-response system; the DOCter impact-echo system; and the MIRA and EyeCon pulse-echo systems
  • Preparing a partially drilled core for conducting a pull-off test with BOND-TEST in accordance with BS 1881:207 or ASTM C1583
  • Other laboratory tests such as: rapid chloride penetration using the PROOVE’it system, bulk conductivity using Merlin, air-void parameters using the RapidAir system, or for petrographic analysis

Principle

A thin-walled coring barrel with a high-performance diamond bit is attached to a water-cooled drill rig weighing between 1.8 kg and 3.5 kg. The drill rig pushes the drill barrel forward concentrically thereby avoiding bending forces during drilling. A special plastic coupling is used between the electric drill and the coring barrel to reduce vibration of the bit, ensuring a long life for the diamond bit and a smooth core surface. The drill rig is kept securely perpendicular to the surface by adjustable clamps anchored to the surface or by a suction plate. The end result is a quickly drilled core that has a smooth surface, accurate diameter, and drilled perpendicular to the surface. Two versions are available: CORECASE CS-75 for a 75-mm core diameter and CORECASE CEL-100 for a 100-mm core diameter.

Example Applications

Corecase_1Coring with the CS-75 rig clamped to the surface

Corecase_2The CS-75 coring rig attached to the suction plate before conducting BOND-TEST

Corecase_3Coring with the CS-75 rig for inspection of cracks following chloride extraction

Corecase_4Coring with the CEL-100 rig to obtain specimen for testing with PROOVE’it for chloride permeability

CORECASE CS-75 (75-mm core)

Corecase_5

Item Order #
Coring rig with coupling CC-10
Handles for coring rig, 3 pcs CC-20
Coring bit, 75 mm x 110 mm CCB-75/110
Water pump with 2 hoses CC-30
Clamping pliers, adjustable, 2 CC-40
Set of anchoring tools, 8 mm CC-50
8 mm expansion anchors, 20 CC-60
Chisel CC-70
Hammer CC-80
Core lifter, 75-mm diameter CC-90
Wrench, 14 mm CC-100
Measuring tape CC-110
Set of spare bearings for coring rig CC-120
Reinforcement locator CC-130
Manual CC-140
Attaché case CC-150
Optional item
Suction plate CC-160
Vacuum pump CC-170
1150 W electric drill CC-180

CORECASE CEL-100 (100 mm core)

Corecase_6

Item Order #
Coring rig with coupling CC-15
Handles for coring rig, 3 pcs CC-20
Coring bit, 100 mm x 210 mm CCB-100/210
Water pump with 2 hoses CC-30
Clamping pliers, adjustable, 2 CC-40
Set of anchoring tools, 12 mm CC-55
12 mm expansion anchors, 20 CC-65
Chisel CC-75
Hammer CC-80
Core lifter, 100-mm diameter CC-95
Wrench, 14 mm CC-100
Measuring tape CC-110
Set of spare bearings for coring rig CC-120
Reinforcement locator CC-130
Manual CC-145
Attaché case CC-155
Optional item
1150 W electric drill CC-180

 Extension rods, 100 mm long, for drilling deeper than 110 mm (CS-75) or deeper than 210 mm (CEL-100) are available on request, Order # CC-190.

Additional coring bits

For CORECASE CS-75

Core diameter × length Coring bit #
25 mm × 110 mm CCB-25/110
35 mm × 110 mm CCB-35/110
50 mm × 110 mm CCB-50/110
75 mm × 110 mm CCB-75/110

For CORECASE CEL-100

Core diameter × length Coring bit #
25 mm × 210 mm CCB-25/210
35 mm × 210 mm CCB-35/210
50 mm × 210 mm CCB-50/210
75 mm × 210 mm CCB-75/210
100 mm × 210 mm CCB-100/210

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