RESIN

RESIN CARTRIDGE

RESIN COMPARTMENT( 90% BY VOLUME )

• UNSATURATED POLYESTER RESINPolyester Backbone

PromotersInhibitors

• COURSE FILLER

• FINE FILLER

CATALYST COMPARTMENT ( 10% BY VOLUME )

• BENZOYL PEROXIDE

• CARRIERThickened Water

Oil

• FILLER

30-35 Revolutions

Mix Both Components

RESIN MIXING TIME

RESIN SYSTEMS

TYPE OF RESIN

MIX TIME orSPIN TIME

HOLD TIME

WHAT IS GEL TIME ?WHAT IS CURE TIME ?

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

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 )

• GEL TIME

• AS A

• FUNCTION

• OF

• TEMPERATURE

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………

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 )

RESIN ANCHORAGE RELATED TO COMPRESSIVE STRENGTH OF ROCK

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

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.

STORAGE OF RESIN

• KEEP IN A COOL, DRY PLACE.

• AVOID DOUBLE STACKING.

• AFFECTED BY HIGH STORAGE TEMPERATURE.

• UNAFFECTED BY FREEZING.

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.

SHELF LIFE

THE END