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Questions and Answers
What British engineer made the first modern concrete by adding pebbles as a coarse aggregate and mixing powdered brick into the cement?
What British engineer made the first modern concrete by adding pebbles as a coarse aggregate and mixing powdered brick into the cement?
- John Smeaton (correct)
- Joseph Monier
- Joseph Aspdin
- Charles William Siemens
What is the property of a material to absorb water vapor from the air called?
What is the property of a material to absorb water vapor from the air called?
- Specific Weight
- Hygroscopicity (correct)
- Water Absorption
- Porosity
What does the term 'specific weight' refer to?
What does the term 'specific weight' refer to?
- The weight per unit volume of a material (correct)
- The ability of a material to endure alternate wet and dry conditions for a long period without considerable deformation and loss of mechanical strength
- The degree to which the volume of the material is interspersed with pores
- The ratio of weight/mass of a given volume of solids to the weight/mass of an equal volume of water at 4 degrees Celsius
Who invented Portland Cement in 1824?
Who invented Portland Cement in 1824?
What denotes the ability of the material to absorb and retain water?
What denotes the ability of the material to absorb and retain water?
Who invented Reinforced Concrete and patented it in 1867?
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 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 porosity refer to?
What does specific gravity 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?
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?
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 stone structure is known as the most imposing megalithic monument in existence?
Which material was extensively used by the Assyrians for construction?
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 period is associated with the Ziggurat at Ur and the Tower of Babel?
Which timber was used by the Egyptians for roofing?
Which timber was used by the Egyptians for roofing?
Which Stone Age period was characterized by nomadic hunting?
Which Stone Age period was characterized by nomadic hunting?
What was the chief building material during the Roman period?
What was the chief building material during the Roman period?
Which material was used for cementing in the Mesopotamian 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 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?
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?
What is the main ingredient of lime putty used in plaster and cement?
Which ancient civilization extensively used lime for mortars and plasters?
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 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 was used as a plaster by the Egyptians, Greeks, and Romans?
What did the Romans develop by mixing lime putty and volcanic ash?
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 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 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 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 type of material is added to gypsum plaster to render it more plastic?
What is the principal type of cement in use today?
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 hardening of concrete upon hydration become in terms of strength, hardness, and durability?
What does the term 'setting' refer to in concrete?
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")?
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 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?
What happens when the lower layers of cement are stored in high piles for long periods?
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