Concrete Solutions

Sika® Plastiment® is highly effective in hot weather concreting to offset the accelerating effects of high ambient temperatures by slowing the hydration reaction and controlling the hydration heat. Concrete workability is enhanced and a superior surface finish is obtained. In mass concrete pours Sika® Plastiment® controls temperature rise and reduces the risk of thermal cracking.    

• Initial set times are delayed, allowing time for proper placement and finishing without cold joints in hot weather conditions.
• Sika® Plastiment® increases concrete density and delivers increased early and ultimate, compressive and flexural strengths.
• For flatwork applications Sika® Plastiment® acts as a finishing aid, workability is improved, bleeding is controlled and a superior surface finish is obtained.
• Lower water cement ratios provide decreased permeability and increased durability.
• Sika® Plastiment® can be used to retard concrete during the hot weather concreting.

    Refer to ACI 305R Hot Weather Concreting for more information. Sika® Plastiment® does not contain no calcium chloride or any other intentionally added chlorides.

• Reduces the rate of hydration of cement and controls concrete temperature.
• Improves slump retention and retards set time of concrete.
• Provides sufficient time for placement and finishing of concrete without cold joints in hot weather conditions.
• In flatwork applications, Sika® Plastiment® XR acts as a finishing aid, improves workability, controls bleeding and provides a superior surface finish.
• In mass concrete pours, Sika® Plastiment® XR controls temperature rise and reduces the risk of thermal cracking.
• Improves compressive strength, flexural strength and durability by controlling the cement hydration reaction.
• Improves homogeneity in the mix and reduces chances of segregation.

    Refer to ACI 305R Hot Weather Concreting for more information. Sika® Plastiment® XR is non-chloride based and does not contain any intentionally added chlorides.

• Increases workable life of concrete up to several hours.
• Allows controlled delay in set time.
• Provides flexibility in planning and scheduling concrete pours.
• Allows returned concrete to be re-used.
• When used in wash water application, prevents concrete producers from having to clean the truck at the end of day’s work and saves water.
• The effect of SikaTard®-440 in concrete can be negated by addition of appropriate accelerators, at any time.

Cold Weather Concreting: When Sika® Plastocrete®-161 HE is added to the mix, set times of cold weather concrete approach those of normal weather conditions.   In case of freezing conditions, cold weather concreting practices as specified in ACI 306 - Standard Specification for Cold Weather Concreting should be followed.    Accelerated Set Times and Strength Development: Sika® Plastocrete®-161 HE may be used to accelerate setting times where job-site efficiency is important in order to maintain construction deadlines.    Reduced setting and curing times offer significant economies in the following areas:

• Insulation and heating costs during curing times are reduced.
• Accelerated setting times allow crews to finish concrete earlier and save time and costs for finishing operations.
• Earlier stripping and reuse of forms increase labor productivity and reduce job site labor costs.
• Accelerated strength gain allows earlier structural use of concrete and speeds up project completion time.

Accelerated Set Times and Strength Development: SikaSet® HE may be used to accelerate set times and increase early strength gain where job-site efficiency is important in order to meet construction deadlines. SikaSet® HE saves time and money by allowing faster finishing and stripping of concrete formwork.

• Insulation and heating costs during curing time are reduced.
• Accelerated set times allow crews to finish concrete earlier, saving on labor costs.
• Earlier stripping and reuse of forms increases labor productivity.
• Accelerated strength gain allows earlier structural use and speeds completion time.

    Cold Weather Concreting: At the recommended dosage rate, SikaSet® HE will protect concrete from freezing in most sub-freezing temperature conditions and may reduce the need for cold weather concreting practices as specified in ACI 306 – Standard Specification for Cold Weather Concreting.

Accelerated Set Times and Strength Development: SikaSet® NC may be used to accelerate set times and increase early strength gain where job-site efficiency is important in order to meet construction deadlines. SikaSet® NC saves time and money by allowing faster finishing and stripping of concrete surfaces.

• Accelerated setting time across a wide range of temperatures.
• Increased early and ultimate compressive and flexural strengths.
• Insulation and heating costs during curing time are reduced.
• Accelerated set times allow crews to finish concrete earlier, saving on labor costs.
• Earlier stripping and reuse of forms increases labor productivity.
• Accelerated strength gain allows earlier structural use and speeds completion time.

  Cold Weather Concreting: In case of freezing conditions, cold weather concreting practices as specified in ACI 306 - Standard Specification for Cold Weather Concreting should be followed.   SikaSet® NC does not contain calcium chloride or any other intentionally added chlorides and will not initiate or promote the corrosion of steel members present in the concrete.