M30,M35,M40,M45 are designed as per aggregate's
,water/cement ratio,type of sand and water are use..it is
designed as per design mix and there will be change in each
purpose of binding wire in RCC. Structually is there any
requirements that how to tie the binding wire like cross or
single or how many pices combine together to bind the steel.
i need structually importance of binding wire.