![]() Although cement contains lime and limestone (calcium carbonate and calcium hydroxide) – its highly solid, non-crystalline nature traps free moving carbonates, reducing its ability to cyclically ‘recarbonate’ CO2.Cement-based building products absorb only up to 20% of its produced carbon output resulting in partially sustainable end-use materials.Carbonate minerals found in calcium carbonate and calcium hydroxide (limestone & lime) freely exchange CO2 with the environment during production and in the product life cycle.Due to the chemically bonded existence of cement, carbonate minerals are trapped within the matrix and do not freely absorb and release CO2 in the environment.The aqueous dissolution of these materials creates high pH solutions that dissolves CO2 that store carbon in the form of solid carbonate minerals or dissolved bicarbonate ions. ![]() Up to 7 billion tons of alkaline materials are produced globally each year as a product or by-product of industrial activity.Please see our selection tables for internal and external applications to help you choose the most appropriate plaster/render.Unlike cement, lime mortars and its related products re-absorb carbon dioxide emissions during the production process and continue to recarbonate CO2 over its in-use phase, creating a complete life cycled, closed-loop process, resulting in negative-zero (-2%) carbon emissions. We also offer a range of hydraulic premixed plasters (just add water) using pigments to give a consistent colour in various grades, from coarse, fine and waterproof! You can see these here! If a hydraulic lime plaster is specified or required then we offer a range of hydraulic limes and aggregates. Ty Mawr’s Lime hemp plaster is a blend of lime (binder) and British hemp plant fibres/shiv and fine aggregate, to make a plaster which is suitable for old buildings as well as ecological new builds. Our Premixed lime plaster can be supplied haired (synthetic/natural) or un-haired so that hair/fibre can be added on site. This is done in our semi-automated production facility which ensures consistency and quality. It is produced by blending our fat lime putty with specially selected aggregates – coarse for roughcast and base coats, and fine for the top coats. Ty-Mawr Premixed lime plaster is a ready-to-use, wet plaster that simply requires knocking up prior to use. Lime plasters also improve the equality of the internal environment as they help regulate humidity by absorbing moisture and thus creating a healthier environment. Their ability to control moisture also makes them highly appropriate finishing for use with other ecological materials such as straw, wood and earth, hence their increased use in new eco-builds. However lime plasters have several attributes, as well as helping to maintain the well-being of the building (moisture control and flexibility), lime plaster also has a “soft aesthetic” which gives older buildings a particular “feel”. ![]() ![]() ![]() Lime plasters were commonly used in most buildings as the internal finish from the humble cottage to grand cathedrals, it is only in recent times that we have started to strip plasters off to reveal the stone or brickwork.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |