Civil Engineering Reference
In-Depth Information
4.0
Control
10% glass
20% glass
30% glass
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
1
2
3
4
5
6
7
8
9
Cycle number
11.11
Weight loss of concrete with various recycled LCD glass
content under cycling of drying and soaking in sulphate solution
(Wang and Huang, 2010b).
permeability and absorption of the concrete, and then enhance the ability to
restrict the migration of the water and ions. Secondly, glass particles have
good acid and alkali-resistance ability.
11.4.2 Chloride penetration resistance
Chloride-induced corrosion of steel in concrete is the main cause responsible
for durability of reinforced concrete structures which are exposed to chloride
in the environment. Chloride penetration resistance of recycled glass concrete
becomes a concern for its potential application in structures exposed to
chloride in the environment.
Different chloride transport test methods have been used to evaluate chloride
penetration resistance of recycled glass concrete, and recycled glass concrete
exhibits improved chloride penetration resistance in recycled glass used either
as fine aggregate or as cement replacement. Figure 11.12 shows the rapid
chloride permeability (RCP) test results of different strength recycled glass
concrete with recycled glass content ranges from 0 to 80% as replacement
of fine aggregate. The penetration level of the chloride ion into concrete is
obtained by measuring the difficulty and the amount of the current passing
through the specimen, as regulated by ASTM C1202 (1997).
As shown in Fig. 11.12, the RCP values of specimens with glass sand
