Oleochemicals

Important additives for building protection

Oleochemical raw materials, namely metallic soaps and sodium oleate are characterized by a beneficial cost/performance ratio. The water absorption coefficient (w) in water resistant plasters has to be below 0.5 kg/m2h0.5. To achieve this, metallic soaps are widely used. An essential criterion in this application is the quality of stearate. Mainly precipitate stearates, with their high specific surface, perform well. While using sodium oleate during the setting of the render, a reaction with calcium ions in the cement or limestone takes place and the oleates are transformed to hydrophobic metallic soaps. The interaction with other raw materials in the plaster formulation is much more pronounced. Product mixtures of stearates and oleates could be an answer to this problem.

A natural decline process occurs in almost all things we perceive in our environment. Wherever possible, human beings try to protect ventures, undertakings against this process. This protection can also be applied to buildings, because they are clearly visible signs of human creativity and they decline when they are subjected to the adverse affects of environment. Water is the most common cause of serious damage. It is responsible for the transport of harmful substances like salts, promotion of the growth of micro-organisms and frost damage in cold periods. Also, heat transition is directly...

Related articles:

Issue 06/2016

Hydrophobic and Superhydrophobic ­Strain-Hardening Cement-Based Composites

The strength and durability of transportation and civil infrastructure, especially concrete highway pavements and bridges, are essential for maintaining a high level of freight and passenger movement...

more
Issue 01/2015 Maleki

Silicate based sealer for architectural concrete

LL-100 of Maleki is a one-component aqueous impregnation containing silicate. It reacts with the Ca(OH)2 to a silicate, stable substrate matrix that is resistant to acid. In addition, LL-100 forms...

more
Issue 07/2012

Maleki GmbH: state-of-the-art silicate technology

The development of new silicate binder systems providing innovative properties is one of the main fields of activity of the Maleki GmbH based in Osnabrück, Germany. The products can be used both for...

more
Issue 06/2014 Fabrino

Surface protection with strong water repellency

With the market launch of Sicorol Pearl, Fabrino based in the German city of Memmingen provides a new surface protection for concrete. The name gives it away: Sicorol Pearl is characterized by its...

more

Cortec Europe: CorrVerter for Rusty Surface Preparation

Sandblasting, water blasting, and labor-intensive grinding are common methods of restoration and surface prep for rusty metal parts or structures. However, these techniques are sometimes prohibited or...

more