RESIN RESIN CARTRIDGE RESIN COMPARTMENT 90 BY VOLUME

RESIN

RESIN CARTRIDGE

RESIN COMPARTMENT ( 90% BY VOLUME ) • UNSATURATED POLYESTER RESIN Polyester Backbone Promoters Inhibitors • COURSE FILLER • FINE FILLER

CATALYST COMPARTMENT ( 10% BY VOLUME ) • BENZOYL PEROXIDE • CARRIER Thickened Water Oil • FILLER

RESIN MIXING TIME 30 -35 Revolutions Mix Both Components

RESIN SYSTEMS TYPE OF RESIN MIX TIME or SPIN 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

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