CBBB wrote:yialousa1971 wrote:mike Bitts wrote:I have found out that tour guides in cyprus are Licenced and the course takes a year the cto is sending me all the info about the course many thanks for your help
who was the first culture to make concrete
Greeks!
It was actually the Romans, but then they lost it for 13 centuries until a Brit re-discovered it, according to Wikipedia.
Wikipedia,
please use credible links next time.
2.0 History of the Use of Cementitious Materials
A historical overview of the use of cementitious materials is provided in this section. The information is broken into three era-specific sections, based upon information found in the literature review. Greater detail on the specific examples of the use of cementitious materials is
presented in Section 3.0.
2.1 Pre-Roman Cementitious Materials
Pre-Roman cementitious materials primarily consist of lime mortars between approximately
3,000 and 9,000 years old. Greek concretes are also classified as pre Roman cementitious materials.
One of the earliest documented examples of the use of a cementitious material occurred nearly 9,000 years ago in the form of a floor slab. This floor slab was constructed using a large
quantity of pyro-processed lime and resulted in a structure with a strength comparable to that obtained in modern structural concrete. Another example is the mortar used in construction of
the Egyptian pyramids. This mortar was used to fill cracks and voids; it significantly enhances structural properties of the pyramids.
The Greeks appear to have been the actual discoverers and first users of pozzolanic concrete (i.e., concrete using volcanic ash as a constituent).1 In one of the earliest examples of the use of
concrete, the Greeks constructed a water tank that still stands today, after 3,000 years of weathering, and still maintains admirable physical properties.
3.2 The Ancient Kamirian Water Storage Tank: A Proof of Concrete Technology and Durability for Three Millenniums
Probably the best example of pre-Roman concrete exists in the Greeks use of concrete. Koui (1998), provides an analysis of a concrete water tank found in the ancient city of Kamiros on the Greek island of Rhodes. The water tank was constructed approximately 3000 years ago and
remains intact today. The research focused on the physical, chemical, and mechanical tests carried out on a concrete sample taken from the water tank. The test results illustrate the concrete’s significant durability. They also support a conclusion that the ancient Greeks had an excellent knowledge of concrete technology three millenniums ago.
John Hart and Associates, P.A.
http://www.wipp.energy.gov/PICsProg/documents/Ancient%20Cementitious%20Materials.pdf