roman

Question 1

when was the roman empire

Answer 1

200 BC - 410 AD

Question 2

types of stone in italy

Answer 2

sedimentary (limestone)
metamorphic (marble, travertine, quartzite )
volcanic ( Tuffa Basalt Granite)

Question 3

how long ago first mortar and how made?

Answer 3

6000 BC burn rocks to make bonding agent

Question 4

what is gypsum

Answer 4

mortar, CaSO4 looses water when heated

Question 5

hwo to make quick lime? what are the different types ?

what do you then add to quick lime to get calcium hydroxide:

Answer 5

CaCO3 (limestone) + heat –>co2 + CaO (calcium oxide)
results in fat lime from pure limestone, or lean lime from clay impurities.
add water to get calcium hydroxide

Question 6

what type of aggregates did they use

Answer 6

potttery, pumice, quarry sand

Question 7

what is hydraulic lime

Answer 7

from lean lime (which had clay impurities)

sets in water.. sets fast.

Question 8

what is non hydraulic lime

Answer 8

from fat lime (with no impurities)

sets slowly

Question 9

virtuvius

Answer 9

engineer/architect for julius caesar. built everything