Set retarders In some cases, the setting time of concrete and gypsum has to be delayed. For example, concrete placement conditions may be slow on a particular building site, or concrete may need to be transported long distances before being placed. At Zschimmer & Schwarz, we offer a range of set retarders that increase the setting time to guarantee the workability of concrete, without affecting the rest of its properties. In addition, the corrosion-inhibiting properties of certain set retarders can be beneficial. Discover our range of setting retarders: Solid products CUBLEN E 34135 P CUBLEN K 9012 GR / K 8514 GR Liquid products CUBLEN A 4015 CUBLEN D 5012 / CUBLEN D 3217 N CUBLEN E 3115 CUBLEN F 3016 CUBLEN K 3014 CUBLEN P 4014 CUBLEN PEP 556 Air-entraining agents Although the main application of air-entraining agents is to increase the durability of concrete, there are other benefits such as an increase in workability and thermal conductivity, together with a reduction in bleeding and segregation. In addition, integrating air bubbles into the structure makes it possible to modify the consistency of the mix, thus reducing the need for water in the concrete. This allows a greater amount of cement to be added to the mix, thereby increasing its strength. At Zschimmer & Schwarz, we have a wide range of anionic and nonionic surfactants, which are used as air-entraining agents. In addition to surfactants, phosphonates can also be used as air-entraining agents. The reason for this is that the affinity of phosphonates for metal surfaces can positively influence the gas evolution of aluminum grit in the production of aerated concrete. Discover our air-entraining agents: PRODUKT EIAE 1460 PRODUKT EIAE 1470 PRODUKT EIAE 1480 PRODUKT EIAE 1490 Water retarders Many properties of concrete are determined by the water-cement ratio. By reducing the amount of water, concrete acquires greater flexural and compressive strength, reduced permeability, greater resistance to environmental conditions, and a lower tendency to shrinkage cracking. On the other hand, it also causes problems such as reduced workability. Zschimmer & Schwarz offers several polymers that can be used as water reducers. They increase the fluidity of the concrete, thus compensating for the loss of workability caused by water reduction. Plasticisers like phosphonates can also help optimise the amount of water required. Discover our water reducers: PRODUKT EIP 1370 PRODUKT EIP 1380 PRODUKT EIP 1390 Mold release agents Mold release agents are compounds used in different industries to prevent a material from adhering to a surface. The compounds provide a barrier between the mold surface and the substrate, preventing adhesion and thus facilitating removal and cleaning of the substrate. Zschimmer & Schwarz offers a wide range of products for this application. Discover our mold release agents: PRODUKT EIMR 1400 PRODUKT EIMR 1410 PRODUKT EIMR 1420 PRODUKT EIMR 1430 PRODUKT EIMR 1440 PRODUKT EIMR 1450
In some cases, the setting time of concrete and gypsum has to be delayed. For example, concrete placement conditions may be slow on a particular building site, or concrete may need to be transported long distances before being placed. At Zschimmer & Schwarz, we offer a range of set retarders that increase the setting time to guarantee the workability of concrete, without affecting the rest of its properties. In addition, the corrosion-inhibiting properties of certain set retarders can be beneficial.
Discover our range of setting retarders:
Although the main application of air-entraining agents is to increase the durability of concrete, there are other benefits such as an increase in workability and thermal conductivity, together with a reduction in bleeding and segregation. In addition, integrating air bubbles into the structure makes it possible to modify the consistency of the mix, thus reducing the need for water in the concrete. This allows a greater amount of cement to be added to the mix, thereby increasing its strength. At Zschimmer & Schwarz, we have a wide range of anionic and nonionic surfactants, which are used as air-entraining agents.
In addition to surfactants, phosphonates can also be used as air-entraining agents. The reason for this is that the affinity of phosphonates for metal surfaces can positively influence the gas evolution of aluminum grit in the production of aerated concrete.
Discover our air-entraining agents:
Many properties of concrete are determined by the water-cement ratio. By reducing the amount of water, concrete acquires greater flexural and compressive strength, reduced permeability, greater resistance to environmental conditions, and a lower tendency to shrinkage cracking. On the other hand, it also causes problems such as reduced workability. Zschimmer & Schwarz offers several polymers that can be used as water reducers. They increase the fluidity of the concrete, thus compensating for the loss of workability caused by water reduction. Plasticisers like phosphonates can also help optimise the amount of water required.
Discover our water reducers:
Mold release agents are compounds used in different industries to prevent a material from adhering to a surface. The compounds provide a barrier between the mold surface and the substrate, preventing adhesion and thus facilitating removal and cleaning of the substrate. Zschimmer & Schwarz offers a wide range of products for this application.
Discover our mold release agents:
