Sika Technology Ag

Sika Ag, Vorm. Kaspar Winkler & Co.

Sika Schweiz Ag

Sika Ag, Vorm, Kasper Winkler & Co.

Sika Schweitz Ag

Franz Wombacher

Christian Bürge

Beat Marazzani

Theodor A B&uuml;rge

Urs Mäder

Gilbert Mäder

Marcel Sommer

Ueli Sulser

Theodor A Burge

Christophe Kurz

Christian Buerge

Urs M&auml;der

André Peter

Urs Maeder

Benedikt Lindlar

Christian Burge

Didier Lootens

Dieter Honert

Robert Flatt

Theodor A Bürge

Heinz Schürch

Giuseppe Colaiacovo

Theodor A Buerge

Gilbert Maeder

Marc Schmutz

Oliver Blask

Christoph Kurz

Heinz Schuerch

Gilbert Mader

Christian M BÜRGE

An admixture for mineral binder compositions, in particular an after-treatment agent for mineral binder compositions, including at least one water-absorbing substance and at least one shrinkage reducer.

Additive for internal post treatment of mineral binder compositions

The use of an amine compound and/or of a salt of the amine compound to inert clay minerals with respect to dispersants in a mineral binder composition containing clay minerals and/or to improve or increase the effect of a dispersant in a mineral binder composition containing clay minerals, wherein the amine compound has a structure according to formula I:HN&#x2014;(CHR)&#x2014;[NR&#x2014;(CHR)]&#x2014;[NR&#x2014;(CHR)]&#x2014;NH&#x2003;&#x2003;(I)and wherein: each s and t, independently of each other, has a value of 0-2; each e, f, and g, independently of each other, has a value of 2-10; each R, R, R, R, and R, independently of each other, represents hydrogen or &#x2014;CH.

Inerting clay minerals and improving the effect of liquefiers in clay-containing mineral binder compositions

A hardening accelerator for mineral binder compositions, in particular for cementitious binder compositions, including at least one phosphoric acid ester of a polyvalent alcohol and at least one alkali metal carbonate.

Accelerator

A composition, in particular a setting accelerator for mineral binders, containing or being made of: a) calcium oxide in the particle form; b) an inhibitor for the reaction of calcium oxide with water and c) optionally water.

Composition based on calcium oxide

An air void-forming agent, more particularly for cementitious systems, contains at least one air void-forming material with foaming effect, at least one air void-forming material with defoaming effect, and water.

Air void-forming material for cementitious systems

A process for preparing a setting and hardening accelerator for mineral binders includes the following steps: a) reacting a calcium compound CV with a silicon compound SV, and b) adding an acidic compound having a molecular weight of not more than 200 g/mol, more particularly 40-100 g/mol.

Process for producing hardening accelerators for mineral binder compositions

Aqueous polymer dispersions, which, in addition to water and a dispersed copolymer composed of at least two monomers selected from the group consisting of ethylene, propylene, butylene, isoprene, butadiene, styrene, acrylonitrile, acrylic acid, methacrylic acid, acrylic acid alkyl ester, methacrylic acid alkyl ester, vinyl ester, and vinyl chloride, also comprises a comb polymer having side chains that are bound to the main chain by ester or ether groups. The aqueous polymer dispersions are particularly suited for use together with hydraulic and latently hydraulic binding agents. The aqueous polymer dispersions are extremely efficient and result in a strong increase in the mechanical values and a relevant decrease in the porosity and the water absorption property.

Aqueous polymer dispersions

The invention relates to additives for hydraulic binders and systems produced from them, such as concrete and mortar. In particular, the present invention relates to a setting and hardening accelerator for hydraulic binders produced by means of reaction of a calcium compound CV with a silicon compound SV and addition of a phosphonic acid derivative, as well as its production.

Accelerator for hydraulic binders

This disclosure relates to stabilizing polycarboxylates, such polycarboxylate ethers, in a presence of an inorganic powder at an elevated temperatures by using at least one antioxidant.

Method for stabilizing polycarboxylates

The invention relates to a composition comprising at least one plasticizer for a hydraulically setting composition and at least one polyalkylene glycol. The invention also relates to a process that uses the composition for improving the processibility, in particular for extending the processing time, of hydraulically setting compositions.

Composition and its use for improving the processibility of hydraulically setting compositions

The present invention relates to a fluoride-free solidification and hardening accelerator for hydraulic binders, comprising sulfate, aluminum and organic acid, the molar ratio of aluminum to sulfate being less than 0.83.

Solidification and hardening accelerator for hydraulic binders and process for its preparation

Exemplary embodiments as disclosed herein are directed to setting and curing accelerators for hydraulic binders, including at least one ester of a polyhydric alcohol with an acid and/or salts thereof, where the acid is a phosphoric acid, phosphorous acid or a Cto Ccarboxylic acid. Compositions including at least one accelerator as disclosed herein can accelerate the setting and curing of hydraulic binders and mortar or concrete produced therefrom, such as quick-setting cement. Methods for accelerating the setting and curing of hydraulic binders and mortar or concrete produced therefrom are also disclosed.

Additive for hydraulic binding agent with long processing time and high early strength

The invention relates to a use of a composition containing polyorganosiloxane S and a method of reducing corrosion on steel reinforcement in reinforced concrete constructions, and also a concrete structure which is produced using such compositions. It is highly suitable for the renovation of old concrete but also for inhibition of corrosion of reinforcing iron in fresh concrete.

Use and method for reduction of corrosion

A setting and curing accelerator for hydraulic binders comprises: Al(SO)aluminum sulfate, Al(OH)aluminum hydroxide and mineral acid in aqueous solution. The setting and curing accelerator preferably comprises:

Solidification and hardening accelerator for hydraulic binding agents and method for the production thereof

Disclosed is a hydraulically setting composition containing phosphorus-oxygen acid esters or ester salts which comprise alkoxy groups. Also disclosed is a surface-modifying agent for structural steel, which contains or consists of phosphorus-oxygen acid esters or ester salts comprising alkoxy groups. The hydraulically setting composition and the surface-modifying agent are suitable for protecting reinforced concrete.

Growing community of inventors

Jonen, Switzerland

Franz Wombacher