Importance of Aggregates

Aggregate play an important part in providing strength to concrete, the transition zone of concrete is the interfacial region between an aggregate and cement paste and is responsible for providing compressive strength to cement. Care should be taken not to use Maximum size aggregate(MSA) more than 20 mm in your houses while there may be…

Details

Why There Are No Skyscrapers in Washington DC?

If you have ever visited our nation’s capital you certainly noticed aside from the Washington Monument (555-feet tallest in the city) and a few other landmarks including the US Capitol (289-feet ranked 5th tallest) there are no real tall high-rise or skyscraper buildings. Look across the Potomac River to Crystal City and Rosslyn and you’ll…

Details

ATPV Vs EBT Arc Ratings

In the past some have asked the difference between ATPV (Arc Thermal Protection Value) and EBT (Energy Breakopen Threshold). So in this article we aim to highlight and explain the differences between ATPV or EBT. Calorific Values The important thing to be considered is the cal/cm2 which the fabric can support. In the US the…

Details

Drainage System And Its Importance

Drainage is the disposal of excess water on land (either used or in form of storm water). It must be distinguished from flood control which is the prevention of damage as a result of overflow from river. There are two type of system adopted for waste water collection. Separate sanitary and combined system. In separate…

Details

How to Clean Pool Deck Drains

Millions of people enjoy backyard swimming pools for exercise, fun, and hosting social gatherings. When you have a swimming pool, there are many things you have to do to make sure the pool stays clean and operating properly. One important part of the pool that must be maintained is the pool drain. The main function…

Details

Timber Fences Vs Colorbond Fences

In my opinion if properly maintained a colorbond fence will outlast a timber fence by 5-10 years. Colorbond fences are made from steel so the paint will fade and the steel eventually rust but not so quickly as treated pine or even hardwood posts will rot through enough to lose stability. A modification growing in…

Details

Hydrocarbon Sensitivity

Hydrocarbon and chemical sensitivity always go hand in hand with food sensitivities. In some patients, the chemical and hydrocarbon sensitivity is more dominant than food sensitivities. In other cases food sensitivities are more important. To date it has been possible to sort out the majority of ecological problems concentrating on foods alone. Sadly this situation…

Details