EN 934-2 Table: 2

EN 934-2 TABLE: 2 / AYDOSMR
Water reducing / plasticizing admixture

Admixtures for concrete; material added during the mixing process of concrete in a quantity not more than 5 % by mass of the cement content of the concrete, to modify the properties of the mix in the fresh and /or hardened state. Water reducing/plasticizing admixture; admixture which without affecting the consistence, permits a reduction in the water content of a given concrete mix, or which, without affecting the water content increases the slump/flow or produces both effects simultaneously.


Description
Is a multi-purpose water reducing, mid-range plasticizing concrete admixture that is suitable for use under any climatic conditions, gives fluidity to concrete or reduces the amount of mixture water of concrete by offering the same fluidity, improves early and final strengths of concrete, shows properties almost similar to superplasticizers at low, normal and high doses and prolongs the workability duration of concrete.

Chemical Properties
EN 934-2 Çizelge 1 - General requirements

Characteristics

Specification

Test Method

Homogeneity

Homogeneous when used. Segregation shall not exceed the limit stated by the manufacturer.

AY-TA.001

Visual

Color

Uniform and similar to the description declared by the manufacturer.

AY-TA.001

Visual

Relative Density

D ± 0.03 if D > 1,10

D ± 0.02 if D ≤ 1,10

Where D is the manufacturer's stated value of density.

TS 781 ISO 758

pH Value (20 0 C)

Manufacturer's stated value ± 1 or within manufacturer's stated range.

TS 6365 EN 1262

Dry Content (%)

0.95 T ≤ X < 1.05 T, if T ≥ 20 %

0.90 T ≤ X < 1.10 T, if T < 20 %

T is manufacturer's stated value % m/m.; X is test result % by mass on dry material content.

TS EN 480-8

Chloride Content (%)

Either ≤ 0.10 % by mass or not above the manufacturer's stated range.

TS EN 480-10

Alkali Content (%)

Not above the manufacturer's stated maximum.

TS EN 480-12

Effective Component (%)

Infrared spectra to show no significant change with respect to the effective component when compared to reference spectrum provided by the manufacturer.

TS EN 480-6

Freezing Point (%)

Not above the manufacturer's stated maximum.

AY-TA.011

Corrosion Behavior

Contains only components according to EN 934-1:2008, Annex A.1

Dangerous Substances

Comply with annex ZA

Dosage

Dosage of contribution is based on the aggregate properties, water quality, concrete class, water-cement ratio and temperature of place.

Shelf Life

12 Months

 

Performance requirements

EN 934-2 Table 2 Specific requirements for water reducing/plasticizing admixtures (at equal consistence)

Essential Characteristics

Performance

Harmonised

Technical Specification

Water reduction

In test mix ≥ 5 % compared with control mix

EN 12350-2

EN 12350-5

Compressive strength

At 7 and 28 days

Test mix ≥ 110 % of control mix

EN 12390-3

Air content in fresh concrete

Test mix ≤ 2 % by volume above control mix unless otherwise stated by the manufacturer

EN 12350-7

 

Areas Of Application

  • • Concrete where high plasticity, normalsetting characteristics and accelerated strengths are desired
  • • In concretes to ensure high early and final strength,
  • • In concretes to ensure high water reduction and long workability,
  • • In concretes that are required to have compact and smooth surface,
  • • In production of light or regular-weight concrete with thin and compact reinforcements or without reinforcements for difficult compacting,
  • • Prestressed, precast and ready-mixed concrete applications,

Properties / Advantages

  • • Considerably increases early and final strength of concrete.
  • • Does not have any retarding effects and ensures setting of concrete in normal period of time.
  • • Significantly reduces the mixing water of concrete.
  • • Significantly improves the workability of a concrete therefore reducing placing time.
  • • Improves water tightness of concrete thanks to low water/cement ratio.
  • • Improves the wear resistance of the concrete by reducing segregation and bleeding.
  • • Improves mechanical properties such as shrinkage and creep.
  • • Ensures achieving less porous and less pervious concretes with a good surface appearance.

Application / Warning

  • • Is used by adding into the mixture water of concrete or directly mixing into the fresh low-slump concrete.
  • • Should not be directly added onto the dry mixture.
  • • After adding 70% of the water to be added into the mixture, Should be mixed with the remaining water and then added into the mixture.
  • • In case of directly adding into the fresh concrete, the mixing time should be prolonged for minimum 1-2 minutes at high speed and such mixing time should be determined during laboratory tests.
  • • Concrete components may differ by their structures. The admixture to be added into the mixture to prevent segregation of the concrete should be applied in the suitable doses. Prior tests should be performed to check whether the admixture is suitable for the design of a certain concrete.
  • • In case of using the admixture in the amount exceeding the specified use range, the setting time of the concrete may be prolonged. In such cases, the concrete should be kept humid to allow for curing until it hardens.
  • • does not contain chloride or any other components that result in corrosion in the reinforcements. Therefore, it is suitable for use in reinforced concrete structures.

Suitability

  • • Suitable for use with all types of concretes with or without admixtures.
  • • In case it is desired to use high amounts of cements, it is used along with mineral additives such as fly ash, micro silica and cinder.
  • • In order to increase the freezing-thawing resistance, it is used together with air entraining It is not recommended to use the product together with products that contain polycarboxylate.
  • • The product is used together with Concrete antifreeze in order to speed up the setting time by increasing the hydration temperature of concrete under cold weather conditions.
  • • The product is used together with Stabilizer at worksites in order to increase viscosity of concrete.
  • • At high temperatures and in case of drafts, make sure to prevent the mixture water within the concrete from evaporating. At the curing stage, curing may be used to prevent fast evaporation of the humidity within the concrete and formation of cracks.
  • • Steel, polypropylene and organic fibers may be used against shrinkage cracks.
  • • It is recommended to perform tests prior to using the products.
  • • In case of mixing with other admixtures, the performance of the product decreases.
  • • Admixtures should not be stored by mixing together.
  • • Mixing and storage equipment should be properly cleaned.

Storage/Shelf Life

Original, unpacked and undamaged products (drums, barrels, containers IBC) should be stored away from direct sunlight and frost at temperatures from +5ºC to +35ºC. In case the product is stored in an unsuitable environment and it freezes, the product should be thawed at ambient temperature without using direct heat and should be stirred using mechanical methods until it is homogenous. When stored under suitable conditions, the shelf life of the product is 12 months from the date of production.

 

Health and Safety

Please use protective clothing, protective gloves, full goggles and a face mask according to Occupational Health and Safety Regulation. Avoid contact with skin and eyes. In case of contact, rinse with plenty of water. In case of digestion, please seek medical attention. For transportation, storage, disposal of the product, its physical, ecological, toxicological information and other details and recommendations please refer to the Safety Data Sheet of the product.