RESIN

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RESIN
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RESIN CARTRIDGE
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RESIN COMPARTMENT( 90 BY VOLUME )

• UNSATURATED POLYESTER RESIN Polyester
  Backbone Promoters Inhibitors
• COURSE FILLER
• FINE FILLER

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CATALYST COMPARTMENT ( 10 BY VOLUME )

• BENZOYL PEROXIDE
• CARRIER Thickened Water Oil
• FILLER

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RESIN MIXING TIME
30-35 Revolutions
Mix Both Components
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RESIN SYSTEMS
TYPE OF RESIN
MIX TIME or SPIN TIME
HOLD TIME
WHAT IS GEL TIME ? WHAT IS CURE TIME ?
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WHAT GEL TIME ?

• GEL TIME IS THE TIME IT TAKES RESIN TO
  REACH A PASTE, OR SEMISOLID STATE.
• ( THIS USUALLY TAKES APPROXIMATELY 5 - 30
  SECONDS )
• GEL TIME SPIN TIME HOLD TIME

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WHAT CURE TIME ?

• CURE TIME IS THE TIME IT TAKES RESIN TO
  REACH ABOUT 90 - 95 OF ITS FINAL STRENGTH
  ( THIS USUALLY TAKES APPROXIMATELY
  10 MINUTES )

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• GEL TIME
• AS A
• FUNCTION
• OF
• TEMPERATURE

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TYPICAL SYSTEMS

• 1 (5 REBAR)
• 5/8 DIA REBAR 0.9 DIA CARTRIDGE
• 1 DIA BORE 3/16 ANNULUS
• 1 (6 REBAR)
• 3/4 DIA REBAR 0.9 DIA CARTRIDGE
• 1 DIA BORE 1/8 ANNULUS
• 1- 3/8 (7 REBAR)
• 7/8 DIA REBAR 1-1/4 DIA CARTRIDGE
• 1-3/8 DIA BORE 1/4 ANNULUS

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WHAT IS ANCHORAGE ?

• ANCHORAGE MEANS HOW WELL A BOLT IS
  ANCHORED IN THE ROOF. WE WANT THE
  ANCHORAGE ZONE OF THE BOLT TO BE GREATER
  THAN THE ULTIMATE STRENGTH OF THE BOLT. (
  DURING A PULL TEST, WE WANT TO BREAK THE
  BOLT INSTEAD OF PULLING IT OUT OF THE
  MINE ROOF )

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RESIN ANCHORAGE RELATED TO COMPRESSIVE
STRENGTH OF ROCK
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WHAT IS RESIN SHOW ?( ON FULLY GROUTED
RESIN BOLTS)

• RESIN SHOW IS WHEN A SMALL AMOUNT OF
  EXCESS RESIN APPEARS BETWEEN THE BOLT HEAD
  AND PLATE.
• RESIN SHOW IS CAUSED, BECAUSE THERE IS
  APPROXIMATELY 6 MORE RESIN BY VOLUME THAN
  THE VOLUME OF THE ANNULUS AROUND THE BOLT.
• A LACK OF RESIN SHOW CAN MEAN A BAD
  INSTALLATION

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COMMON MISTAKES WHEN INSTALLING RESIN BOLTS

• DRILL HOLE TOO DEEP
• DRILL HOLE TOO LARGE IN DIA.
• SPINNING BOLT TOO LONG.
• RESPINNING BOLT AFTER HOLD TIME.
• BOLT SPACING NOT ACCORDING TO ROOF CONTROL
  PLAN.
• OVER TORQUING BOLT DURING INSTALLATION.

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STORAGE OF RESIN

• KEEP IN A COOL, DRY PLACE.
• AVOID DOUBLE STACKING.
• AFFECTED BY HIGH STORAGE TEMPERATURE.
• UNAFFECTED BY FREEZING.

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SHELF LIFE

• QC PRODUCTS 6 MONTHS
• ALL OTHERS 1 YEAR
• SHELF LIFE CAN BE EXTENDED UP TO TWO
  MONTHS, BUT ONLY BY THE RESIN MANUFACTOR
  AFTER TESTS HAVE BEEN PREFORMED.

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SHELF LIFE
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THE END