Product Description
ADVA® FLOW 346 is a high performance high efficiency, new generation admixture designed to impart extremely high consistence and enable the production of self compacting concrete. ADVA® FLOW 346 is based on next generation modified synthetic carboxylated polymers and offers concrete producers the advantages of the latest advances in concrete technology. ADVA® FLOW 346 conforms to EN 934-2 and manufactured under controlled conditions to give a consistent product.
Typical Properties
Appearance |
Amber / Straw Liquid |
Specific Gravity (20°C) |
1.08 |
Alkali Content (eq.Na2O) |
0.50% |
Chloride Content |
Nil |
Air Entrainment |
1.0 % |
Freezing Point |
0°C |
Advantages
- ADVA® FLOW 346 is extremely efficient, allowing the production of high Flow / self-compacting concrete without excessive admixture dosage and at ‘normal’ water contents
- Using suitable mix design, self-compacting concrete produced with ADVA® FLOW 346, efficiently flows then compacts around rebar reinforcement without blocking or segregation
- ADVA® FLOW 346 will enhance both the concrete pumpability and a combined plasticizing effect allows for high range water reductions, leading to considerable increases in compressive strength, impermeability and durability
- ADVA® FLOW 346 is especially suitable for Precast Factory applications, as is has neutral setting time and high early age strength
Compatability with Other Admixtures
ADVA® FLOW 346 should not under any circumstances be premixed with other admixtures. The performance of the product will be affected by the presence of other chemical admixtures.
We recommend that all admixtures be added separately into the mix.
Method Of Use
ADVA® FLOW 346 is supplied ready for use.
When producing high consistence concrete or concrete of low w/c ratio it is recommended that ADVA® FLOW 346 be added in its supplied form with part of the batching water, after the addition of the cement. After the addition of the admixture, a further mixing cycle of two minutes is suggested to enable ADVA® FLOW 346 to efficiently disperse the mix components.
Compatability with Cements
ADVA® FLOW 346 can be used with most types of Portland cements. It is also effective in concrete containing fly ash or ground granulated blastfurnace slag.
For use with special cements we recommend contacting GCP.
Addition Rates
Range |
300 ml -1000 ml per 100 kg cement
0.30% -1.00% (v/w) by wt. of cement |
---|
As a guide to trials an addition rate of 0.60 - 0.80% volume by weight of cement is suggested. |
For advice and assistance with trials we recommend that you consult GCP Applied Technologies. |
As with most products of this type, the magnitude of the effect obtained with ADVA® FLOW 346 is governed by the quantity of product used, w/c ratio, and specific nature of the concrete and constituent materials. It is necessary therefore to assess performance under site conditions using actual materials to determine optimum dosage and effect on plastic/ hardened concrete properties, such as cohesiveness, consistence retention, set characteristics, early rate of strength gain, ultimate compressive strength and shrinkage when these are of consequence.
Effects of Overdosing
The effect of overdosing ADVA® FLOW 346 is a function of the degree of overdose.
When producing high consistence concrete, overdosing will increase the level of consistence and may induce the onset of segregation.
Depending on the extent of the overdose, an increase in setting time may also occur, especially in low ambient temperatures and/or when employing Sulfate-resisting Portland cements or cement replacement materials.
Any situation where an overdose is suspected, careful inspection of the concrete in its plastic state should be conducted. Particular attention to consistency and cohesiveness prior to a decision on the suitability of the concrete for the particular application in question.
Dispensing
It is preferable that the ADVA® FLOW 346 should be introduced into the mixer by means of automatic dispensing equipment.
Equipment or advice on dispensing can be obtained from GCP Applied Technologies.
Health and Safety
For further information on Health and Safety matters regarding this product we recommend that you consult the relevant Safety Data Sheet from GCP Applied Technologies.
In line with general chemical handling precautions avoid contact with skin or eyes and protective gloves/goggles should be worn.
Packaging and Storage
ADVA® FLOW 346 is supplied in both 15 or 205 non returnable drums and 1,000 litre totes.
Alternatively, bulk deliveries can be arranged.
ADVA® FLOW 346 should when possible be stored away from extremes of temperature and then protected from frost. The product should be kept out of direct sunlight in shaded storage at all times.
Storage Life in Manufacturer ‘s Drums:
12 months from date of manufacture.
Storage Life in Bulk Storage:
12 months from date of delivery.
Technical Service
Our Technical Service department of GCP Applied Technologies is available to assist you in the correct use of our performance chemicals.