Dry Mortar Technology

The invention of redispersible powders by Wacker-Chemie in 195 3 made for the first time the production of polymer modified dry mix mortars possible, which are nowadays referred to as one pack or one component system ( bagged materials). New construction methods and building materials, which had the need for more safety, reliability, durability, efficiency and economy, have been achieved by using modern methods like the dry mix mortar technology. As a consequence worldwide the job-site mix technology and the modification of mortars with liquid polymers on job-sites were and are substituted by polymer modified dry mix mortars. The product characteristics are very well adapted to the requirements of modern construction technologies, materials and cHmates. 

The use of redispersible powders and therefore also the use of polymer modified powdered mortars is already for many decades standard in the construction industry in Europe and North America (predominantly in the USA). Other marketplaces all over the world like South America, Asia, Africa and Australia are in the process following that example. More and more environmental reasons ask also for the usage of dry mortars, since the recycling of buckets becomes more and more an issue. Dry mortars are also easy to store, hansport and do not require biocides. 

Typically dry mortar mixes contain the components hsted in Tab. 13-1 and are defined according to German standard DIN 18557. 

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The building/construction industry is the main industry for redispersible powders. Over the years the usage of dry mortar technology has been developed dramatically and modernized the way mortars are being used on a job-site. The invention of redispersible powders enabled the industry for the first time to produce pre-packed, polymer modified building materials that needed only the addition of water before application. These materials, known as dry mortar mixes guarantee defined and consistent performance of construction materials. 

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