Effect of rice husk ash (RHA) and phosphogypsum (PG) on the corrosion behavior of reinforcing steel in concrete
O.S. Shehata; Noura Saad tantawy;
Abstract
Corrosion behavior of reinforced steel embedded in cement pastes has
been studied with utilization of Rice Husk Ash and PG as mineral
admixtures.These admixtures provides several advantages for cement such
as improved strength, durability and reduced materials cost due to cement
saving and environmental benefits related to the disposal of waste materials
and to reduced carbon dioxide emissions. The results indicated that,
steel passivity degree in aggressive media is low in OPC than its passivity
when OPC mixed with variable proportion of RHA and phosphogypsum.
Also, corrosion inhibition of reinforcing steel increased with increasing
RHAand PGpercentage until 20%RHAand 10%for PG, in different aggressive
media such as sulphate and chloride.
been studied with utilization of Rice Husk Ash and PG as mineral
admixtures.These admixtures provides several advantages for cement such
as improved strength, durability and reduced materials cost due to cement
saving and environmental benefits related to the disposal of waste materials
and to reduced carbon dioxide emissions. The results indicated that,
steel passivity degree in aggressive media is low in OPC than its passivity
when OPC mixed with variable proportion of RHA and phosphogypsum.
Also, corrosion inhibition of reinforcing steel increased with increasing
RHAand PGpercentage until 20%RHAand 10%for PG, in different aggressive
media such as sulphate and chloride.
Other data
| Title | Effect of rice husk ash (RHA) and phosphogypsum (PG) on the corrosion behavior of reinforcing steel in concrete | Authors | O.S. Shehata; Noura Saad tantawy | Keywords | Rice husk ash;Phosphogypsum;Corrosion;Reinforced steel | Issue Date | Apr-2008 | Publisher | Trade Science Inc. - INDIA | Journal | Physical Chemistry: An Indian Journal | Volume | 3 | Issue | 1 | Start page | 60 | End page | 66 |
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