enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Roof cleaning - Wikipedia

   en.wikipedia.org/wiki/Roof_cleaning

   One safe and effective means to clean a roof is an electric agricultural sprayer system, as originally developed in Florida, USA in the early 1990s. [6] The equipment is used to apply a cleaning solution (typically containing bleach) that kills the algae, bacteria, mold, mildew, moss, fungus and other organic organisms growing on the roof.

3. Reinforced concrete structures durability - Wikipedia

   en.wikipedia.org/wiki/Reinforced_concrete...

   The humidity content of concrete is one of the main influencing factors of CO 2 diffusion in concrete. If concrete pores are completely and permanently saturated (for instance in submerged structures) CO 2 diffusion is prevented. On the other hand, for completely dry concrete, the chemical reaction of carbonation cannot occur.

4. Concrete degradation - Wikipedia

   en.wikipedia.org/wiki/Concrete_degradation

   Carbonation-initiated deterioration of concrete at Hippodrome Wellington, Belgium. Carbon dioxide (CO 2) from air (~ 412 ppm vol.) and bicarbonate (HCO − 3) or carbonate (CO 2− 3) anions dissolved in water react with the calcium hydroxide (Ca(OH) 2, portlandite) produced by Portland cement hydration in concrete to form calcium carbonate (CaCO

5. Summer Roof Maintenance Plan: Essential Checklist and Tips - AOL

   www.aol.com/summer-roof-maintenance-plan...

   For premium support please call: 800-290-4726 more ways to reach us

6. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Concrete roofing is composed of concrete reinforced with fibers of some sort. Structural concrete can also be used for flat roof constructions. There are three main categories, precast/prestressed, cast-in-place and shell. There are many types of precast/prestressed concrete roofing. The following are the most common types. [8]

7. Structural integrity and failure - Wikipedia

   en.wikipedia.org/wiki/Structural_integrity_and...

   Collapsed barn at Hörsne, Gotland, Sweden Building collapse due to snow weight. Structural integrity and failure is an aspect of engineering that deals with the ability of a structure to support a designed structural load (weight, force, etc.) without breaking and includes the study of past structural failures in order to prevent failures in future designs.