The document discusses glass partition walls and hollow glass blocks. It describes that glass partition walls use a wooden frame with glass sheets fixed into panels divided by horizontal and vertical posts. Glass blocks are translucent square or rectangular glass units that are laid using mortar and sometimes metal reinforcement. Glass partition walls and blocks provide architectural effects while being light, soundproof, fireproof and heatproof. Proper installation following guidelines is important due to the expansion and contraction of glass.

1. Glass Partition
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2. Glass sheet partitions
 Wooden frame work is used in which glass sheets
are fixed.
 It consists of a number of horizontal and vertical
posts spaced to divide the entire area into number of
panels.
 Glass sheets are kept in position in the panel either
by using timber beadings or by putty.(linseed oil and
whiting chalk)
 Such partitions are light weight, vermin proof and
sound proof.
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3. Types Of Glass Used
 Annealed glass
 Flat Glass
 Laminated Glass
 Alarm Glass
 Reflective Glass
 Anti-reflective Glass
 Fire-resistant Glass
 Tempered (toughened) Glass
 Low-emission Glass
 Acid-etched Glass
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6. Hollow block
 Hollow glass blocks are translucent units of glass, light in
weight and are available in different sizes and shapes and
thicknesses.
 They are usually square with thickness of 10cm.(14x14cm
or 19x19cm)
 Jointing edges are painted internally and sanded
externally to form key for mortar.
 Front or back faces may be either decorative or plain and
are sometimes fluted.
 Glass blocks are usually laid in cement-lime mortar (1:1:4)
using fine sand.
 For blocks upto 15cm in height, expanded metal strip
reinforcement is placed in every 3rd or 4th course.
 If height of block is more than 25cm, reinforcement placed
in every course.
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7.  Another type of glass blocks are in the form of glass
bricks with joggles and end grooves. ( sketch)
 Glass blocks or glass bricks walls provide good
architectural effect and also admit light.
 They are sound proof, fire proof and heat-proof
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8. • Golden Rules - essential guidelines that need to be considered prior
to preparation of the opening and before beginning installation of
glass blocks.
• Glass block walls are self supporting, but not load bearing. Therefore
similar to doors & windows, support above should be provided in the
form of a lintel.
• For best integral strength, glass blocks should ideally be installed into
a four sided pre-prepared opening. This opening can be timber, brick,
steel, concrete or block work.
• Glass blocks expand and contract with temperature change.
• Glass blocks should not be installed when the surrounding
temperature is 5OC and falling or 30OC and rising.
• Expansion material must be incorporated to the perimeter opening &
intermittently between vertical or horizontal joints if a panel exceeds
6m in any direction. Perimeter expansion should be weatherproofed
by caulking with silicon and not grouted over with mortar. If grouted
the joint is bridged, restricting expansion & contraction & may cause
blocks to crack.
• Openings must be square and perpendicular and made to suit glass
block modules. Glass blocks should not be cut like masonry bricks or
tiles.
• Maximum panel size without intermediate support or slip joints is
25m2 with no single dimension exceeding 6min any direction
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11. Glass Block Partition Detail
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12. Glass Block Partition Detail
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