HEA2® Grinding Aid/Pack Set Inhibitor - W.R. Grace - Grace ...

where pack set indices versus pumping rates,through a 1,500m Fuller Kinyon line, weremeasured and compared.Greater bulk density:HEA2 increases the bulk density of cementby up to five percent, providing increasedstorage capacities of silos and bulk carriers.Controlled set times:Special HEA2 formulations designed toextend cement setting times are availablethrough your Grace representative.HandlingHEA2 may be dispensed as received.However, dilution with 5 parts water ormore is recommended to ensure greaterproportioning accuracy and better additivedistribution. Suitable dispensing pumpswith adjustable flow rates should be used foroptimum performance. Diluted HEA2 maybe added onto the clinker conveyor belt orsprayed into the mills first compartment.Addition RateHEA2 typical dosage rates will vary fromBlaine Surface Area(cm 2 /g)HEA2 Dosage Rate% by weight ofcement2700 - 3500 0.01 - 0.023500 - 4500 0.02 - 0.04over 4500 0.04 - 0.060.01% - 0.05% by weight of cement for TypesI & II cements and 0.04% - 0.08% by weightof cement for Type III cements.Dosing EquipmentGrace grinding aids should be accuratelyproportioned through a calibrated dosingsystem, suitable for the cement mill andoutput required.Specification ComplianceApproved for use under ASTM C 465specification as a non-harmful processingaddition, HEA2 has been thoroughly testedand is widely used in the cement industry.PackagingHEA2 is supplied in 210L drums, or in bulkby tanker trucks. It contains noflammable materials.StorageProtect from freezing. Once frozen, theproduct should be thawed out slowly andre-mixed thoroughly prior to use.Technical ServicesField Engineers from Grace ConstructionProducts are available to assist in laboratoryand mill test evaluations of HEA2. Completetesting equipment and methods for analysingmill performance and pack set index are alsoavailable during plant trials.www.graceconstruction.comAustralia: Melbourne (61-3) 9359 2121 China Mainland: Beijing (86-10) 6786 3488,Guangzhou (86-20) 3833 0775, Shanghai (86-21) 5467 4678 Japan (81-3) 5405 2991Korea (82-32) 814 2051 Philippines (63-49) 5497373 Singapore (65) 6265 3033 Thailand (66-2) 709 4470HEA2 is a registered trademark of W. R. Grace & Co.-Conn.The information given is based on data and knowledge considered to be true and accurate and is offered for the user’s consideration,investigation and verification. Since the conditions of use are beyond our control we do not warrant the results to be obtained. Pleaseread all statements, recommendations or suggestions in conjunction with our conditions of sale including those limiting warranties andremedies which apply to all goods supplied by us. No statement, recommendation or suggestion is intended for any use which wouldviolate or infringe statutory obligations or any rights belonging to a third party.These products may be covered by patents or patents pending. Copyright 2007. W. R. Grace (S) Pte Ltd 33-CEM-5 Printed in Singapore 05/07