Stone Age Chronology and Lifestyles

What British engineer made the first modern concrete by adding pebbles as a coarse aggregate and mixing powdered brick into the cement?

What is the property of a material to absorb water vapor from the air called?

What does the term 'specific weight' refer to?

Who invented Portland Cement in 1824?

What denotes the ability of the material to absorb and retain water?

Who invented Reinforced Concrete and patented it in 1867?

What is the ratio that indicates the degree to which the volume of a material is filled with solid matter called?

What does porosity refer to?

What does specific gravity refer to?

What British engineer made the first modern concrete by adding pebbles as a coarse aggregate and mixing powdered brick into the cement?

During which Stone Age period did farming and permanent settlements begin?

Which stone structure is known as the most imposing megalithic monument in existence?

Which material was extensively used by the Assyrians for construction?

Which period is associated with the Ziggurat at Ur and the Tower of Babel?

Which timber was used by the Egyptians for roofing?

Which Stone Age period was characterized by nomadic hunting?

What was the chief building material during the Roman period?

Which material was used for cementing in the Mesopotamian period?

Which stone structure is a circular arrangement of megaliths enclosing a dolmen or burial mound?

Which type of stone was used by the Egyptians for masonry materials?

What is the main ingredient of lime putty used in plaster and cement?

Which ancient civilization extensively used lime for mortars and plasters?

What type of lime sets under water and is used where slow underwater setting is required?

What was used as a plaster by the Egyptians, Greeks, and Romans?

What did the Romans develop by mixing lime putty and volcanic ash?

What is the process of mixing quicklime with water to create calcium hydroxide known as?

What is the product of heating gypsum rock and losing about three-fourths of its combined water?

What was the type of cement first developed by the Romans?

What type of material is added to gypsum plaster to render it more plastic?

What is the principal type of cement in use today?

What does the hardening of concrete upon hydration become in terms of strength, hardness, and durability?

What does the term 'setting' refer to in concrete?

In what form is concrete known as when mixed with water and a fine aggregate of less than 6mm (¼")?

What should be done to protect cement at the building site from injury through contact with dampness?

What happens when the lower layers of cement are stored in high piles for long periods?