Concrete Floor Reflectance

Using concrete mixtures with sufficient mixing water however the investigators reported.

Concrete floor reflectance.

Reflectance values for aged weathered or abraded concrete surfaces were affected by the reflectance of. Concrete does a very good job of reflecting solar energy. Others prefer concrete flooring for purely aesthetic reasons. 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.

That is the finding from a portland cement association pca study which measured the solar reflectance index sri of 45 concrete mixes. Bright shiny and polished concrete floors look much better than a dull and dreary surface. It can be important to maximise the light reflectance from an exposed surface for example to reduce the artificial lighting requirement. Before the floor was dark typical of a steel troweled concrete floor and it was gouged by forklifts refracting instead of reflecting the light.

Light reflectance value lrv is a measurement used to inform how much light a color reflects and how much it absorbs. 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. This is the text promo text here. Once the concrete slab was ground this dark top layer is removed exposing concrete that is lighter in color because it has not been burned by trowel machines.

Lighter colored materials such as concrete generally have a higher solar reflectance.