Sikament®-500 B

Sikament®-500 B follows the requirements of ASTM C494; Type G and EN 934-2

Sulphonated naphthalene blend

12 months from date of production if stored properly

Store in undamaged, unopened, original sealed packaging in dry conditions at temperatures between +5 °C and +45 °C. Protect from direct sunlight and frost.

~1.22 kg/l (+25 °C)

Nil                                                                                                               (EN 934-2)

The standard rules of good concreting practice for production and placing must be observed when using Sikament®-500 B in concrete. Refer to relevant standards.
Fresh concrete must be cured properly especially at high temperatures in order to prevent plastic and drying shrinkage. Use Sika® Antisol® products as a curing agent or apply wet hessian.

Sikament®-500 B may be combined with all types of Portland cement (OPC and SRC), concretes containing pozzolanic materials such as; GGBS, PFA, micro-silica and the following Sika products:
SikaPump®, Sika® FerroGard®-901, SikaFume®, SikaFiber®, Sika Aer®, Sika® Stabilizer, Sika®-1 WT, Sika® WT-10
We recommend to perform trial mixes to establish the required performance when combining Sikament®-500 B with the above products or other admixtures. Please consult our Sika Technical Department.

Sikament®-500 B is added to the gauging water or simultaneously poured with it into the concrete mixer at the batching plant.
Do not add Sikament®-500 B directly to the dry mix.
For optimum utilization of its high water reduction property we recommend thorough mixing at a minimal wet mixing time of 60 seconds.The addition of the remaining gauging water (to fine tune concrete consistency) may only be started after two-thirds of the wet mixing time to avoid surplus water in the concrete.

0.60 - 2.8 % by weight of binder.
Higher dosages by weight of binder can be used depending on the mix design, raw materials, climatic conditions and concrete requirements.
Trial mixes must be performed to establish the exact dosage rate required.

Before pouring suitability tests on the fresh concrete must be carried out.
Due to the extended workability take special care that formwork is properly installed and secured.
If frozen and/or if precipitation has occurred, it may only be used after thawing slowly at room temperature and intensive mixing.
When using Sikament®-500 B a suitable concrete mix must be designed for the local material sources and should be trialed.
When accidental overdosing occurs the set retarding effect and workability increases. Additional air may also be entrained.
During this period the concrete must be kept moist in order to prevent premature drying out.