Alberta Transportation has recently amended its Bridge Structure Design Criteria Version 7.0 (BSDC) to embrace ASTM A1035 corrosion-resistant reinforcing (CRR) steel of MMFX Steel (MMFX2 Rebar) or solid stainless steel to prevent corrosion in Exposure Class 2 bridges in Alberta.
The company is aware that these two options significantly lower construction, life-cycle and user costs.
Uncoated CRR steel like MMFX2 (ASTM A1035) has been analyzed and proved to be about five times more corrosion-proof than normal steel and provides a high level of safety against harsh climate and usage conditions when compared to traditional materials like epoxy-coated rebar (ECR).MMFX2 Rebar has surpassed the 100-year service life expectancy that is presently being stipulated for bridges . It is also remarkably less expensive than other stainless steel rebars, and is advantageous to taxpayers by offering them more durable bridges, slashing maintenance expenses and causing much lesser disturbances in the traffic flow, making it a very attractive option.
MMFX Technologies’ President Michael W Pompay stated that the new concept followed by Alberta Province is commensurate with the procedures adopted by dynamic transport establishments that have identified MMFX2 as one of the top-most economical products to beat bridge deterioration.
ECR has been Alberta Transportation’s customary method of safeguarding bridges from deterioration. The revised BSDC stipulations have done away with this traditional method as field investigations extending over many years showed that it did not meet the expectations regarding protection against deterioration.
Besides providing more durable bridges that save a lot of maintenance costs, MMFX2 (ASTM A1035) abets easier and more efficient construction by getting rid of problems that are generally a part of the unique handling needed for coated rebar products.