Product Overview
Description
Product Description
Carboxyl PK-2U
Carboxyl PK-2U is a superplasticizing and super water-reducing additive with the effect of accelerating the concrete hardening process in accordance with GOST 24211-08. This additive is made on the basis of polycarboxylate polymers and a complex strength gain accelerator. It does not contain components that contribute to the formation of reinforcement corrosion. Carboxyl PK-2U makes it possible to obtain concretes with high mobility of the mixture, but with a low water-cement ratio. It allows you to reduce the time or completely abandon the vibration treatment of the mixture when forming products, reduce the time of heat treatment (TVO), significantly improve the appearance and geometry of finished products and increase the final strength without increasing the amount of cement laid.
Scope of application:
The additive Carboxyl PK-2U is intended for the manufacture of w / concrete elements and structures (including those with prestressed reinforcement), self-compacting and self-leveling homogeneous mixtures at enterprises producing precast reinforced concrete, the construction of monolithic densely reinforced structures, etc.
The additive Carboxyl PK-2U does not contain substances that contribute to the corrosion of the reinforcement and the appearance of efflorescence.
Documentation:
TU 5745-008-13453677-2015,
The products comply with sanitary standards:
Sanitary and epidemiological conclusion No. 1-T-36pr of 25.05.2015.
Issued by the Federal State Budgetary Institution "Federal Center of Hygiene and Epidemiology in the Bryansk Region".
The products are not subject to mandatory certification.
Technical indicators:
Appearance | Liquid from light yellow to brown color |
pH value | 6 - 8 |
Density, at 20 °C | 1.2 kg/l ± 0.08 |
Packaging, storage and transportation:
Canisters of 10 kg, barrels, capacities of 1000 liters. It is transported by any means of transport. The product belongs to the 4th hazard class (low-hazard substance). Non-flammable and non-toxic product. Store in unopened original packaging, protecting from direct sunlight at temperatures from -10 °C to +35 °C. The shelf life is at least 12 months. from the date of manufacture (see the date in the quality certificate).
Application:
The additive Carboxyl PK-2U is a ready-to-use product. It is introduced together with the closing water (with the last part of the water). Do not add to the dry mixture. After being introduced into the concrete mixture, it is recommended to ensure sufficient mixing time for an even distribution of the additive in the mixture. The mixing time is selected by the consumer based on the conditions of the technology. The recommended mixing time is at least 1 minute. The effectiveness of the additive directly depends on the chemical composition of cement and aggregates.
When changing the inert or binding agents of the concrete mixture, it is recommended to adjust the composition of the mixture in the laboratory.
Dosage:
0.5-1.5% of the mass of cement for the finished product.
For self - compacting concrete mixes, a dosage of up to 2-2.5% is possible.
Other dosages are possible. The optimal dosage is determined by checking the effectiveness of its administration in accordance with GOST 30459-08.
Recommendations for use
Name of the additive | Hyperplasticizer Carboxyl PK-2 (U) The additive is one of the types of additives Carboxyl PC-2 and is produced on its basis. |
Description of the additive | Carboxyl PK-2 (U) is a superplasticizing and super water-reducing additive with the effect of accelerating the concrete hardening process in accordance with GOST 24211-08. The additive is intended for use in all types of concrete and reinforced concrete, including with the use of prestressed reinforcement. This additive is made from polycarboxylate polymers and a complex strength gain accelerator. It is available only in liquid form with a solution density of 1.2 g / cm3. The additive works most effectively with additive -free cements and cements of groups 1 and 2. Characteristics of the effectiveness of the additive: - increasing the mobility of the concrete mixture from P1 to P5, spreading the cone to 60 cm, depending on the fraction of a large aggregate; -reducing the time or completely abandoning the vibration compaction of the mixture (allows you to make self-compacting concrete); - reducing the amount of mixing water from 20% and above; - increasing the compaction coefficient of the concrete mixture; - the possibility of saving up to 20-25% of cement while reducing the water- cement ratio of the mixture; - reduction of time and energy costs for heat and humidity treatment; - increase of frost resistance and water resistance of products. |
Documentation | TU 5745-008-13453677-2015, The products comply with sanitary standards: Sanitary and epidemiological conclusion No. 1-T-36pr of May 25, 2015 The products are not subject to mandatory certification. |
Compliance with the norms | GOST 24211-2008 (Table 1. Section 1, sub-paragraphs 1.1.1, 1.2.1 and 1.4. Section 2, sub-paragraphs 2.1.1, 2.2, 2.3, 2.4, 2.5 and 2.6) |
Recommended dosages | The dosage of the additive is carried out according to the liquid substance, it is not necessary to transfer it to the amount of dry additive! The range of recommended dosages: 0.5-1.5% by weight of cement. For self - compacting concrete mixes, a dosage of up to 2-2.5% is possible. Other dosages are possible. The optimal dosage is determined by checking the effectiveness of its administration in accordance with GOST 30459. |
Application | The additive Carboxyl PK-2 (U) is recommended to be introduced into the concrete mixture together with water (with the last part of it) or pre-mixed with mixing water. Do not add to the dry mixture. After being introduced into the concrete mixture, it is recommended to ensure sufficient mixing time for an even distribution of the additive in the mixture. The mixing time is also selected by the consumer based on the conditions of the technology, but not less than 1 minute. The effectiveness of the additive for concrete directly depends on the chemical composition of cement and aggregates. When changing the inert or binding agents of the concrete mixture, it is recommended correction of the composition of the mixture in the laboratory. |
Additive density | 1.2 g / cm3 ± 0.08 |
Appearance | The liquid is from light yellow to brown in color. |
The tolerance of the draft, no more than | 1% |
Packaging | Cans, barrels, containers of 1000 liters |
Guaranteed storage period | Store in the closed original packaging, protecting from direct sunlight at a temperature from -10 °C to +35 °C. When freezing, ensure slow thawing and thorough mixing with further testing of the effectiveness of the additive in laboratory conditions. The shelf life is at least 12 months. from the date of manufacture (see the date in the quality certificate). After the expiration of the warranty period, the additive Carboxyl PK-2 (U) must be tested for compliance with the requirements of the current technical specifications. In case of compliance, it can be used without restrictions |
Regulations and manuals recommended for familiarization when working with the additive | - "Manual on the use of chemical additives in the production of prefabricated railway structures and products" (to SNiP 3.09.01-85) - "Guidelines for the use of chemical additives" (Moscow, Stroyizdat, 1981) - SNiP 2.03.01-85 "Concrete and railway structures" - GOST 24211-2008 " Additives for concrete and mortar. General technical conditions" - GOST 30459-2008 " Additives for concrete and mortar. Methods for determining the effectiveness" |
DESIGN AND SELECTION OF THE COMPOSITION OF CONCRETE WITH AN ADDITIVE
The selection of the composition of concrete with an additive is made by adjusting the designed and selected composition of concrete without an additive and should ensure the required strength and other performance characteristics with minimal cement consumption. It is recommended to carry out the work in accordance with GOST 2700-86 Concrete. Rules for selecting the composition.
Adjustment of the composition of concrete with an additive should be made in relation to a specific technology conditions as close as possible to production.
production of concrete and reinforced concrete products and structures, depending on the required technical and economic effect. Prototypes of concrete should be made on factory materials and harden in All concrete compositions selected in the laboratory and the modes of heat treatment of products and structures should be adjusted in production conditions.
concrete mixture consists in choosing the optimal dosage of the additive and reducing the water-cement ratio.
When using an additive for plasticizing a heavy concrete mixture, the adjustment of its composition consists of in choosing the optimal dosage of the additive and in determining the proportion of sand in the mixture of aggregates.
When using an additive to increase the strength or density of heavy concrete, the adjustment of the composition of the The optimal dosage of the additive is considered to be such an amount of it, with the introduction of which strength of concrete the maximum reduction in cement consumption is achieved while maintaining the specified mobility of the mixture and obtaining the required compressive
REQUIREMENTS FOR MATERIALS
For the preparation of concretes with an additive, it is recommended to use additive-free cements and cements of groups 1 and 2 that meet the requirements of GOST 10178, as well as sulfate-resistant and pozzolan cements according to GOST 22266 Do not use hot cements (with a temperature above 40°C) due to their increased water and other special cements according to the current technical conditions.
Plasticized cements should not be used.requirements of GOST 26633, as well as GOST 10268, GOST 8267 should be used. Aggregates for concrete should not contain inclusions of demand, overspending of cement and rapid loss of mobility of the concrete (mortar) mixture.
As large aggregates for heavy concrete, materials that meet the avoid their interaction with the alkalis of Portland cement clinker in order to prevent the development of reactive silica (opal, chalcedony, etc.) more than 50 mmol/l according to the requirements of GOST 26633 in order to alkaline corrosion of concrete.For light concrete, materials according to GOST 9757 and GOST 25820 should be used as large aggregates.
As fine aggregates for heavy concrete, it is recommended to use sands according to GOST 8736.
The water used for the manufacture of concrete with an additive and for the care of them must comply with GOST 23732.
SAFETY REQUIREMENTS WHEN WORKING WITH THE ADDITIVE
The additive Carboxyl PK-2 (U) is a low-hazard substance and belongs to the 4th hazard class according to GOST 12.1.008. Does not emit harmful substances or vapors during storage. The introduction of an additive into the concrete mixture does not change the
toxicological and hygienic characteristics of concrete. Hardened concrete with an addition to the air environment does not emit toxic substances.The additive can have an irritating effect on the mucous membranes of the visual and respiratory organs and The additive is NOT explosive and fire-hazardous.
unprotected skin. If the additive gets on the skin or in the eyes, rinse with running water. When working with an additive work site must be instructed on safety when working with chemical additives for it is necessary to use personal protective equipment according to GOST 12.4.103 and GOST 12.4.011. Before admission to work, the concrete.Do not pour the remaining additives into the sewer. Disposal is carried out in accordance with the legislation.
Company Profile
The company "Fort"
In the world construction practice, the proportion of concrete containing additives is steadily increasing. In Russia, this figure is more than 80%. Today, chemical additives are used in all concrete production technologies, and also contribute to the emergence of new technologies that are simply impossible to implement without additives. At the same time, the most promising direction is the use of complex additives, which have several components in their composition that complement each other and improve the properties of concrete. The main issue that has to be solved when creating such modifiers is the selection of the optimal combination of components.
Today, the company "Fort" is one of the main and experienced players in the Russian market of concrete additives. Since 2004, Fort has been developing, testing, manufacturing and selling high-quality products. Many developments are carried out with the participation of specialists from construction and transport institutes (NIIZHB G.Moscow, PGUPS g.St. Petersburg, etc.), and the production is carried out on modern automated equipment by specialists with a high degree of training. Deep knowledge of the market, many years of experience in creating and developing production, multiplied by the scientific potential of Russian scientists, allow us to successfully solve the problem of producing products that are in demand by the huge construction industry.
Products
Fort additives are distinguished not only by the variety of areas of use, but also by their simplicity, safety and ease of use. And, as a rule, at an acceptable price, not to the detriment of the quality and efficiency of their use. A significant part of Fort's products are multifunctional complexes, which include components that have long been widely known to concrete workers around the world. Their properties have been studied and confirmed by many decades of application practice on construction sites of the USSR and the CIS, as well as other countries. The researchers were primarily concrete scientists of the former USSR and the CIS (F. Ivanov M., Batrakov V. G., Bazhenov Yu. M., etc.) The Fort company cooperates with some of them during the development of chemical additive compositions.
Product sales and customer service
A well-thought-out sales and dealer policy, a wide coverage of the regions of Russia and the CIS, ensure the delivery of Fort products to end consumers with minimal costs. The priority value in the company's development strategy is occupied by attentive and painstaking work with each client (selection of the necessary additives and further technical support by our specialists).
FAQ
1. Can I get samples?
- Sending chemical samples internationally is a very complex process. In fact, it is necessary to draw up a full-fledged contract. Therefore, the minimum batch is 1000kg or 1000l.
2. Can I have my own customized product?
- Everything is possible, except for changing the packaging itself. Changing the packaging is possible hgb orders from 200 tons per month.
3. How long does it take to calculate the shipping cost?
- Three days
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