10 Questions
What is lime mixed with to form lime mortar?
Sand
What percentage of calcium oxide does fat lime contain?
95%
What happens when water is added to fat lime?
It slakes vigorously and its volume increases
What does hydraulic lime contain?
Clay and ferrous oxide
What are the properties of fat lime?
(a) Hardens slowly (b) Low plasticity (c) Sets slowly in the presence of air (d) White in colour (e) Does not slake vigorously
Fat lime is composed of 95% calcium oxide
True
Hydraulic lime contains clay and ferrous oxide
True
Lime mixed with sand provides lime concrete
False
Lime hardens quickly in the presence of air
False
Lime mortar is formed by mixing lime with coarse aggregate
False
Study Notes
Lime Composition
- Fat lime is composed of 95% calcium oxide
Hydraulic Lime
- Hydraulic lime contains clay and ferrous oxide
Lime Properties
- Fat lime hardens quickly in the presence of air
Lime Mortar Formation
- Lime mortar is formed by mixing lime with coarse aggregate
Lime Concrete
- Lime mixed with sand provides lime concrete
This quiz provides an introduction to lime as an important binding material used in building construction. It covers its historical use, its function in construction, and its properties when combined with other materials.
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