Precast Glass Block Flooring

Precast Glass Block Floor Panels (Roof Lights)
Precast floor panels are also known as roof lights. La Rochere manufacture glass blocks and glass shells suitable for use in precast floor panels.

Characteristics of Floor Blocks
La Rochere manufacture their shells and pavers by compression of a glass drop at about 1050°C. These shells are annealed at 560°C to eliminate internal tensions. Insulating pavers are obtained by heat fusion at more than 800°C of two hollow shells and are also annealed at 560°C.

FIG 1 shows a selection of glass blocks that can be incorporated into Precast Concrete Floor Panels:

For increased slip resistance, the glass surface can be sandblasted.

Paver Shells and Hollow Block
Ref	P12.60	P15.55	P15.80	PR12.60	P19.100
Dim in mm	120x120x60	150x150x55	150x150x80	Ø120x60	190x190x100
Weight/paver	1.2kg	1.6kg	2kg	1.1kg	3.5kg
Quantity/m2	33-40	23-28	23-28	33-40	15-18
Surface	Clear	Clear	Clear	Clear	Clear
Appearance	Ribbed	Ribbed	Ribbed	Clear	Frosted

Mechanical Strength (Tested by public laboratory)
Type	Average Load	Surface	Result
P12.60	194.KN	144cm2	13.5MPA
P15.80	309KN	225cm2	13.8MPA
P19.100	535KN	361cm2	14.8MPA

Fire Rating
Specialist fire resistant block pavers for F30, F60 and F90 thermal isolation classification can be manufactured upon request, certain rules apply regarding panel sizes, joint and perimeter border widths.

Insulating Pavers
Ref	BGF1930	BGF1960	BGF1990
Dim in mm	190x190x80	190x190x160	190x190x160
Weight/Paver	4.15kg	8kg	8.3kg
Q/m2	15-18	15-18	15-18
Surface	Clear	Clear	Clear
Appearance	Clear	Clear