FARCOPLASTP PR is FARCOPLAST PR is based on modified polycarboxylate ether, which is exceptionally formulated for long term slump retention properties.
PR is recommended for concretes which slumps needs to be maintained from 2 to 6 hours.
Mechanism of Action
The two most important mechanism attributed to dispersion in polycarboxylate systems are linked to polymer adsorption and steric hindrance caused by the thickness of the adsorbed polymer layer on to the cement particle and repulsion through induced electrical electrostatic charge.
FARCOPLAST PR complies with
ASTM C 494 –Type G
ISIRI 2930 –Table 11 , 13
EN 934-2 –Table 11.1 – 11.2
Opaque greenish liquid
Typically 1.1±0.02 at 20°c
Hot weather concreting
Suitable for cements with high slump losses
Concrete containing fly ash or silica fume
Blast furnace slag cement concrete
Provides a cohesive non segregating concrete mixture
Concretes with slump retention properties of 2 to 6 hours Improves impermeability against sulfate, chloride
and water due to reduced water content
Improves abrasion and frost resistance by decreasing W/CM
PR is specially suitable for producing high workability concrete that has excellent workability retention, in this application, extension in setting time and little loss in early age compressive strength are observed.
Reduced dosage range in comparison with conventional polycarboxylates.
Method of use
FARCOPLAST PRis supplied ready for use and is completely miscible in water.
It can be added in to the mixer at the same time as the mixing water.
It should not be added directly to the cement or dry materials.
FARCOPLAST PR may be added at the end of mixing process by dispensing equipment or it may also be added to the concrete in a drum of ready mix truck, it should be mixed at least 1 minute per m³ of concrete at high speed.
PR is normally dosed at a rate of 0.5-1.4% by weight of cementitious materials weight.
Dosage recommendations depend on the characteristics of the mix design.
Field testing is recommended to determine the optimum dosage and effect on both plastic and hardened concrete properties such as : workability and workability retention, setting time, early and ultimate strength.
Other product info
The fluidified concrete remains workable for approximately 2-6 hours at 20°c (concrete temperature). Duration of workability depends not onlyon the temperature, but also on the type and brand of cement, the nature of the aggregates, the method of mixing, the method of transportation and the amount of added admixture.
FARCOPLAST PR is suitable for use with cement replacement materials e.g. Fly ash, silica fume and blast furnace slag cement concrete.
With other Admixtures
FARCOPLAST PR should not be premixed or used with other admixtures unless receive the approval from manufacturer. We would recommend that SHIMISAKHTEMAN be consulted in such circumstances
FARCOPLAST PR is supplied in 20kg gallons, 220kg drums and 1100 kg IBC tanks.
FARCOPLAST PR Storage is recommended to keep within the range of 5°c to 40°c. If product has frozen, thaw and agitate until completely reconstituted Keep out of direct sunlight.
12 month when PR is kept under the recommended conditions and stored in unopened and undamaged original sealed containers.
Safety and Handling Precautions
PR is a product classified as harmless, but in the line with general chemical handling precautions to avoid contact with skin or eyes, protective gloves and goggles should be worn.
The SHIMISAKHTEMAN Technical Service Department is available to assist you in the concrete problems in the field and correct use of our products.
http://en.shimisakhteman.net/wp-content/uploads/2019/01/pic-product4.png300200adminhttp://shimisakhteman.net/wp-content/uploads/2019/01/logonahaee2-300x82.pngadmin2019-04-15 03:15:482020-03-17 00:11:04FARSIZAL AIR
Office Address: No. 242, First floor, Mirdamad Blvd, Tehran, Iran
Contact Number: +98-21-27427
Factory address: East third and second, Simin Dasht Industrial Town, Shahriar Road, Karaj, Iran.
Contact number: +98-26-36670012-3-4
The company has been operating since 1972 under the management of Massoud Honarmand. Shimisakhteman holds a production license from the Ministry of Industry, Mining and Trade and has a mandatory standard certification of 2930. We have been selected as a standard sample unit every year since the 90’s.