Concrete Floor Reflectance

They reflect heat from the sun and do not warm the air very much.

Concrete floor reflectance.

Reflectance values for 25 week old concrete produced with white and gray cement were 0 68 to 0 77 and 0 41 to 0 52 respectively. Concrete does a very good job of reflecting solar energy. Light reflectance value lrv is a measurement used to inform how much light a color reflects and how much it absorbs. Lighter colored materials such as concrete generally have a higher solar reflectance.

Reflectance values for aged weathered or abraded concrete surfaces were affected by the reflectance of. Measuring the reflectance of floors for big box retail stores it s not only the levelness and flatness of a floor that counts it s also the ability of a floor to reflect light that matters. The scale ranges from 0 to 100 with 0 being. An as struck smooth grey portland cement surface may have a reflectance of 40 cibse although this will reduce if the surface is mottled or discoloured.

This is the text promo text here. Others prefer concrete flooring for purely aesthetic reasons. Before the floor was dark typical of a steel troweled concrete floor and it was gouged by forklifts refracting instead of reflecting the light. Using concrete mixtures with sufficient mixing water however the investigators reported.

That is the finding from a portland cement association pca study which measured the solar reflectance index sri of 45 concrete mixes.