Brosur Rheomag

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8 , , I . c ! Iii \j , ! '. ..' " .-... RHEOMAC GF300 Formerly FG 10 Grout fluidifier DESCRIPTION Rheomac GF300 is a dry powder type, chloride free additive designed to impart high fluidity to ordinary sand- cement grout mixes at a low water cement ratio. It is shrinkage compensated in the plastic state to counter the mild plastic shrinkage normally associated v/ith site batched grouts. RECOMMENDED FOR Rheomac GF300 is recommended for use where site batched grout mixes are preferred or necessary due to site conditions. Typical applications. are: grouting of cable ducts in post tensioning work. filling gaps between prefabricated wall panels. underpinning work. pre-packed grouting of cavities. grouting of rock strata. grouting for soil stabilisation. grouting voids difficult to access. Rheomac GF300 is not recommended for grouting applications where consistently high strengths and total shrinkage compensation are critical requirements. Refer to M BT for recommendations from the Masterflow range of precision grouts. FEATURES AND BENEFITS Shrinkage compensated Retains filled volume by compensating for any mild, plastic shrinkage. Enables complete filling of even narrow voids. Denser. grout. Increased strength properties.' Increases fluidity of the mix Lowers water demand PERFORMANCE DATA Compressive strength (typical) Strength depends on the quality, type and proportion of cement used in the mix. For a given mix and fluidity, the grout mix incorporating Rheomac GF300 will have a superior strength than the one without. Fluidity Depends on the quality and grading of the sand, together with the types and proportions of the cementitious materials in the mix. For a given mix and a water cement ratio, Rheomac GF300 improves the ~uidity substantially. Shrinkage compensation . . The extent of effective shrinkage compensation depends on the type and proportion of cementitious materials in the mix and the grading of sand. 11111.1 > ./ Setting times . Depends on the type and quality of cement used. Rheomac GF300 slightly retards the setting time of the grout mix. PROPERTIES Supply form Colour Storage temperature Application temperature : powder : cement grey : 10-40°C : >10°C APPLICATION Preparation Ensure that the sand used for grouting is clean, well graded and dry. If the sand is wet, its moisture content in every supply lot should be checked before using. Keep sufficient quantity of Rheomac GF300, sand, cement and other cementitious materials such as fly ash, if required, on hand before commencing grouting. Clean all the substrate surfaces free from dust and loose particles. In case of grouting cable ducts, flush the duct with water followed by pumping in compressed air. Seal any serious breakage in the duct to prevent grout leakage later. Ensure the area to be grouted is well saturated with clean water before commencing work. Formwork Proper design of formwork, wherever required, to suit the geometry of the space being grouted is essential for effective grouting. The formwork can be made from timber, steel, or. any other suitable material depending on the circumstances. It must be grout tight, strong, and well braced'to withstand the fluid pressure of the grout until it sets. Before erecting, coat the inner surfaces with a suitable release agent for easy release. Seal all the gaps in formwork, and those between formwork and concrete surface with a suitable joint sealant or using mortar mixed with Rheomac GF300 to a stiff consistency. Before commencing the grouting operation, blow clean the grouting area with oil-free compressed air. Mixing Mechanical mixing is necessary. For a large batch use an approved grout mi~er and for a small batch (up to about 50 kg at a time), use a heavy duty. slow speed (.approx. 600, . rpm) drill fitted with a grout paddle or helical stirrer. Prepare. trial mixes and check for segregation. Alter the proportion of the mix or use finer sand to prevent segregation. . . . Mix RheomacGF300 with about 80% of the water required for the batch. Keeping the mixer running, add the sand and cement in the desired proportions. Mix until a homogeneous mixture is obtained. Add the remaining 20% water u.ntil the desir!:!d fluidity is achieved. '" " Building Tomorrow Together . mbt

Transcript of Brosur Rheomag

Page 1: Brosur Rheomag

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RHEOMAC GF300Formerly FG 10

Grout fluidifier

DESCRIPTIONRheomac GF300 is a dry powder type, chloride freeadditive designed to impart high fluidity to ordinary sand-cement grout mixes at a low water cement ratio. It isshrinkage compensated in the plastic state to counter themild plastic shrinkage normally associated v/ith sitebatched grouts.

RECOMMENDED FORRheomac GF300 is recommended for use where sitebatched grout mixes are preferred or necessary due to siteconditions. Typical applications. are:

grouting of cable ducts in post tensioning work.filling gaps between prefabricated wall panels.underpinning work.pre-packed grouting of cavities.grouting of rock strata.grouting for soil stabilisation.grouting voids difficult to access.

Rheomac GF300 is not recommended for groutingapplications where consistently high strengths and totalshrinkage compensation are critical requirements. Refer toMBT for recommendations from the Masterflow range ofprecision grouts.

FEATURES AND BENEFITS

Shrinkage compensated Retains filled volume bycompensating for any mild,plastic shrinkage.Enables complete filling ofeven narrow voids.

Denser. grout. Increasedstrength properties.'

Increases fluidity of themix

Lowers water demand

PERFORMANCE DATA

Compressive strength (typical)Strength depends on the quality, type and proportion ofcement used in the mix. For a given mix and fluidity, thegrout mix incorporating Rheomac GF300 will have asuperior strength than the one without.FluidityDepends on the quality and grading of the sand, togetherwith the types and proportions of the cementitiousmaterials in the mix. For a given mix and a water cementratio, Rheomac GF300 improves the ~uidity substantially.Shrinkage compensation . .

The extent of effective shrinkage compensation depends onthe type and proportion of cementitious materials in the mixand the grading of sand.

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Setting times .Depends on the type and quality of cement used.Rheomac GF300 slightly retards the setting time of thegrout mix.

PROPERTIES

Supply formColour

Storage temperature

Application temperature

: powder

: cement grey: 10-40°C

: >10°C

APPLICATION

PreparationEnsure that the sand used for grouting is clean, well gradedand dry. If the sand is wet, its moisture content in everysupply lot should be checked before using.Keep sufficient quantity of Rheomac GF300, sand, cementand other cementitious materials such as fly ash, ifrequired, on hand before commencing grouting.Clean all the substrate surfaces free from dust and looseparticles. In case of grouting cable ducts, flush the ductwith water followed by pumping in compressed air. Sealany serious breakage in the duct to prevent grout leakagelater.Ensure the area to be grouted is well saturated with cleanwater before commencing work.Formwork

Proper design of formwork, wherever required, to suit thegeometry of the space being grouted is essential foreffective grouting. The formwork can be made from timber,steel, or. any other suitable material depending on thecircumstances. It must be grout tight, strong, and wellbraced'to withstand the fluid pressure of the grout until itsets. Before erecting, coat the inner surfaces with asuitable release agent for easy release.Seal all the gaps in formwork, and those between formworkand concrete surface with a suitable joint sealant or usingmortar mixed with Rheomac GF300 to a stiff consistency.Before commencing the grouting operation, blow clean thegrouting area with oil-free compressed air.

MixingMechanical mixing is necessary. For a large batch use anapproved grout mi~er and for a small batch (up to about 50kg at a time), use a heavy duty. slow speed (.approx. 600,

. rpm) drill fitted with a grout paddle or helical stirrer.Prepare. trial mixes and check for segregation. Alter theproportion of the mix or use finer sand to preventsegregation. . . .Mix RheomacGF300 with about 80% of the water requiredfor the batch. Keeping the mixer running, add the sand andcement in the desired proportions. Mix until ahomogeneous mixture is obtained. Add the remaining 20%water u.ntil the desir!:!d fluidity is achieved.

'" " Building Tomorrow Together . mbt

Page 2: Brosur Rheomag

SRm GF300/2/0998

The teehnieol infonnation ond opplicotion odvice given in this ivIBT publicotion ore bosed on the present stote ofour best scientific and proc:icol knowledge. As the infonnation herein is of a gencral nalUre no assumption con bemode as to 0 product's suitobi!ity for a particular use or application and no warranLy as Loits accuroc}', reliobiliL,'or completeness either e"pressed or Unplied is given other than U,ose required by law. The user, is responsible forcheckinQ the suitabilitv ofcroduets for Uleirjritended use.Field service where provided docs not constitute supervisory responsibility. Suggestions mode by ;".ffiT eiU,erorally or in writing may be followed, modified Ofrejected by U,e owner, engineer or contractor since they, ondnot ~'II3T arc responsible for corrying out procedures appropriate Loa specific application..

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IDosage: Add Rheomac GF300 at the rate of 0.4 to 1 kgfor every 100 kg of cementitious materials used in the mix.Nore : If the height of the grout. column is going to be morethan 100mm (e.g. Boltholes), mix 12mmdoi-vn,cleanpeagrave/or crushed aggregates by up to 100 % of the \'/eightof total mix to reduce the heat of hydration, in which case,do not sieve the grout through any screen.

PlacingPlace the mixed grout within 15 minutes after mixing. Theplacing should be without interruptions until completion.While grouting vertical sections start from the lowest pcint.

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ICURINGCure all exposed grout surfaces as soon as the groutreaches touch hard state with a uniform coar ofMasterkure 181.

IEQUIPMENT

Mixing: Grout mixer or heavy duty slow speed drill with agrout paddl e or helical type stirrer.Placing: Double diaphragm air operated pump or a handoperated diaphragm type grout pump.

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I STATEMENT OFRESPONSIBILITY

I NOTE

I. .Far East offices

AUSTRALIA

MBT (Australia) pty LtdTel: (61) 296244200Fax: (61) 296247681

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CLEANING

Clean tools and equipment with water, before the grouthardens.

ESTIMATING DATA

The consumption of Rheomac GF300 is entkely dependenton the volume of the void to be grouted, the types andproportions of cementitious materials used in the mix.

PACKAGING

Rheomac GF300 is supplied in 20 kg.

SHELF LIFE

Rheomac GF300 can be stored in tightly sealed originalpacking for 12 months, if kept in a dry place.

PRECAUTIONSHealth: Rheomac GF300 is non toxic but alkaline likenorm.al cement. The skin of some people may be sensitiveto alkalis in cem'ent. Wear gfoves and fac'e masks whilehandling the product. Take all precautions normally takenwbile handlingcement. .Fire: Rheomac GF300 is not flammable.

HONG KONG

Master Builders Technologies(Hong Kong) LIdTel: (852) 2 4074291Fax: (852) 24'067391KOREAKorea Master Builders Co. Ltd

Tel: (82) 234734891Fax: (82) 2 34737669MALAYSIA

MBT (Malaysia) Sdn BhdTel: (60) 3 3443388Fax: (60) 3 3442288NEW ZEALAND

MBT (New Zealand).LtdTel: (64) 9 8282006Fax:(64) 9 8286067

I CHINA

Shanghai Master Builders Co. LtdTel: (86) 21 64300944Fax: (86) 2164301943

I Guangzhou MBT Co., LtdTel: (86) 20.3396768Fax: (86) 20 3;396468INDONESIAPT MBT Indonesia

Tel: (62) 21 8934339Fax: (62) 21 8934342

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THAILANDThai Master Builders Co.LtdTel: (66) 2 3614735Fax: (66) 2 3614741SINGAPOREMBT (Singapore) Pte. LtdTel: (65) 8616766Fax: (65) 8613186PHILIPPINES

MBT (Philippines) IncTel: (63) 28150035Fax: (63) 2 8161433

. TAIWAN

MBT (Taiwan) Co. LtdTel: (886) 2 8837700 .Fax: (886) 2 8837711

VIETNAM

MBT (Vietnam) LtdHo Chi Minh City BranchTel: (848) 8228694Fax: (848) 8228695Hanoi BranchTel: (844) 8435025Fax: (844) 8446876