7007 SEAWAY BLVD 2019-02-06 - Laserfiche WebLink

• x et, iii'' �. 1�. �`.�„'r'� aG 0 , , e?!�:'..re`'++ vr54 .toles.;r .Fi70,m,v:.34�3Ysgottfa;•:,, • Wi t. :`j'AP', • `f ai.;--ie.4y.1 al Lthti4: ';tkr-1 '4.i�`,f wAmi I=A,GE • concReTe aDmIxTURes ,... . . `�;r: .-+''.t' Rti`sl...:.. ..: iogt DESCRIPTION: DARAVAIR is an aqueous solution of completely of air-entraining admixture required are,temperature,ce- neutralized•vinsol resin and is produced at a high con- ment,sand gradation,and the use of extra fine materials cehtration and low viscosity. DARAVAIR is a clear,dark such as fly ash.Typical DARAVAIR addition rates range brown liquid intended for use as supplied. One gallon from 3/4 to 3 fluid ounces per 100 lbs. of cement. weighs approximately 8.9 lbs. The air-entraining capacity of DARAVAIR is usually in- • creased when'other concrete admixtures are contain- USES: DARAVAIR may be used wherever the purposeful en- ed in the concrete, particularly water-reducing admix- tures and water-reducing retarders. This may allow up admix- trainment of air is required by concrete specifications. to atwo-thirds reduction in the amount of DARAVAIR It is particularly useful in mass concrete and in high required.cement,factor, low slump paving mixes, which require re q efficient,effective air-entraining admixtures.DARAVAIR MIX ADJUSTMENT: entrains air readily even under adverse conditions such Entrained air will increase the volume of the concrete as described above or when fly ash or manufactured and,consequently, it is necessary to adjust the mix pro- sand is used in the concrete mix. portions to maintain the cement factor and yield. This AIR ENTRAINING ACTION: is partly accomplished by the permissible reduction in water requirement and additionally by a reduction in the Air is incorporated into the concrete by the mechanics fine aggregate content. of mixing but stabilized into millions of discrete semi- , microscopic bubbles in the presence of a specifically DISPENSING EQUIPMENT: designed air-entraining admixture such as DARAVAIR. A complete line of accurate automatic dispensing equip- -•-se air bubbles act much like flexible ball bearings ment is available. These dispensers can be located to III easing the mobility, or plasticity and workability of discharge into the water line, the mixer,or on the sand. concrete. This permits a reduction in mixing water PACKAGING: ` - with no loss of slump.Placeability is improved. Bleeding, DARAVAIR is available in bulk,delivered by metered tank green shrinkage and segregation are minimized. trucks and in 55-gallon drums. DARAVAIR contains no Through the purposeful entrainment of air, DARAVAIR flammable ingredients. DARAVAIR WILL FREEZE AT markedly increases the durability of concrete to all ex- ABOUT 30°F BUT ITS AIR-ENTRAINING PROPERTIES posures particularly to freezing and thawing.It has also ARE COMPLETELY RESTORED BY THAWING AND demonstrated a remarkable ability to impart resistance THOROUGH AGITATION. to the action of frost and deicing salts as well as sulfate,. ARCHITECTS' SPECIFICATION FOR sea and alkaline waters. CONCRETE AIR ENTRAINING ADMIXTURE: '..'. ..• COMPATABILITY WITH OTHER ADMIXTURES: Concrete shall be air entrained concrete,containing 4 to DARAVAIR is fully effective and compatible in concrete 8%entrained air.The air contents in the concrete shall be . with other admixtures and may be used with water- determined by the pressure method(ASTM Designation reducing admixtures, accelerators, and initial set retard- C 231)or gravimetric method(ASTM Designation C 138). erssuch as WRDA®with MFCOLT'Q,WRDA®,DARASET® The air entraining admixture shall be a completely and DARATARD®. EACH ADMIXTURE, HOWEVER, neutralized vinsol resin solution,such as DARAVAIR,as SHOULD BE ADDED TO THE CONCRETE SEPA- manufactured by the Construction Products Division of RATELY. W.R.Grace&Co.—Conn.,or equal,and comply with stan- ADDITION RATE: dard specification for air entraining admixtures(ASTM Designation C-260).The air entraining admixture shall There is no standard addition rate for DARAVAIR. The be added at the concrete mixer or batching plant at ap- amount to be used will depend upon the amount of air proximately 3/4 to 3 fluid ounces per 100 lbs.of cement, required for job conditions, usually in the range of 4 to or in such quantities as to give the specified air contents. 8%. Typical factors which might influence the amount mope 1989IW.R Grace Rj aCo.-Conn. here x� GRACE VYe hops the lnforrteotbn Give^here wit be helpful tt is hosed on data oM Ytwwtedpe ooesstdered to be true oeW accurate and is offered toe the users consideration.investioatlon and vetit cotton but we do notwarrant tth resat: tto u to be obtained Moose rood at statements.recotmeaWatbre cc supoestions In conjunction of sole which app"toot°oodi suppled by us.No statement.recommendation on or suooestion Is Intended for any Concrete Products use which would kstrinoo any potent or copydohi•Conztnretion Products(Xvfsion WP. &Grace Ca-Cont 62 Whit- • remote Ave.Combridoe•Mott 02140