Op­ti­miza­tion with TEREX War­rior screens

NBM&CW - - CONTENTS -

In­fra­struc­ture devel­op­ment in In­dia is see­ing high de­mand, prompt­ing com­pa­nies to adopt new tech­nolo­gies and ma­chines to en­sure good qual­ity work and timely com­ple­tion. The gov­ern­ment too has worked out sev­eral work­able mod­els like EPC con­tracts and Hy­brid Annuity projects, which have been quite suc­cess­ful in meet­ing the pro­jected in­fra devel­op­ment. At the same time, the model con­ces­sion agree­ments are be­ing con­tin­u­ously re­viewed to mit­i­gate risk to the banks and in­vestors, and to en­sure con­trac­tors’ prof­itabil­ity.

In view of the cen­tral gov­ern­ment’s devel­op­ment agenda, ad­vanced con­struc­tion tech­nolo­gies, ma­chines and method­olo­gies are be­ing ex­am­ined and sub­se­quent trails are be­ing made on their per­for­mance as per In­dian spec­i­fi­ca­tions and con­di­tions.

Com­pa­nies from across the world are also view­ing the projects and devel­op­ment plans be­ing an­nounced by the gov­ern­ment. They are keep­ing track of the projects be­ing awarded, and not­ing their progress ev­ery year. These com­pa­nies are pro­mot­ing their tech­nolo­gies and ex­per­tise to of­fer speed of con­struc­tion, mit­i­gate ma­te­rial deficit by reuse of re­claimed ma­te­ri­als from site, and bring cost ef­fec­tive so­lu­tions, with­out com­pro­mis­ing on the qual­ity of con­struc­tion.

In the highly com­pet­i­tive en­vi­ron­ment, cost ben­e­fit anal­y­sis is be­ing con­tin­u­ously worked out, since ex­e­cu­tion of a project within the pre­scribed bud­get re­mains a big chal­lenge. Ev­ery con­trac­tor is work­ing out dif­fer­ent op­tions for ex­e­cu­tion of projects within the time­frame and keep­ing in mind the req­ui­site qual­ity pa­ram­e­ters, to avoid any cost over­runs. Most In­dian com­pa­nies fol­low the mantra of on-time or early

com­ple­tion of projects, and claim bonus as per the con­trac­tual pro­vi­sions, and also save on over­head charges. All of this has helped them book prof­its.

Few of the new tech­nolo­gies which have used by our com­pany and other in­dus­try play­ers for ex­e­cu­tion of road projects in In­dia are:

● Soil sta­bi­liza­tion: This gives the re­quired strength by which a layer of road mak­ing can be saved, and in turn, sav­ing the en­vi­ron­ment.

● Warm mix tech­nol­ogy: This al­lows bi­tu­men mix to be paved on roads at a lower tem­per­a­ture, with good work­a­bil­ity and bet­ter sta­bil­ity of the roads, which helps save on fuel and lower emis­sion of toxic gas into the en­vi­ron­ment.

● Cold mix tech­nol­ogy: This has been quite preva­lent in the con­struc­tion of ru­ral roads in In­dia. As most of the high­ways in In­dia are widened and re­ha­bil­i­tated, there are many sec­tions that re­quire pro­file cor­rec­tions, junc­tions need mod­i­fi­ca­tions and re­con­struc­tion, and ap­proach roads where re­claimed ma­te­rial is used - the most valu­able be­ing as­phalt pave­ment - which has a good per­cent­age of bi­tu­men con­tent and ag­gre­gates. All these ma­te­ri­als are milled us­ing milling ma­chines for op­ti­mum re­cov­ery of ma­te­ri­als and piled up at lo­ca­tions close to the Hot Mix plants. The RAP is pro­cessed along with vir­gin ag­gre­gates and bi­tu­men in RAP ready Hot Mix plant for bi­tu­mi­nous coarse ma­te­rial.

G R In­frapro­jects Ltd. bought the first TEREX War­rior 600 screen, a lon­gawaited equip­ment re­quired for pro­duc­tion of op­ti­mum mix qual­ity us­ing RAP ready Hot Mix plant. GR In­fra could feed coarser ma­te­rial in the RAP ring of plant and finer RAP with high bi­tu­men con­tent into the plant mixer di­rectly, to pro­duce a bet­ter mix that re­tains the bi­tu­men prop­er­ties present in RAP. This has com­mer­cial ad­van­tage as it en­ables bet­ter qual­ity of roads, and saves the en­vi­ron­ment from min­ing of ag­gre­gates etc. Due to the sev­eral ad­van­tages pro­vided by the equip­ment, G R In­frapro­jects to­day has three War­rior 600 Screens, and it plans to have one with ev­ery RAP ready Hot Mix Plant.

The com­pany also owns TEREX track­mounted crush­ers to meet the de­mand for ag­gre­gates for mak­ing flex­i­ble and rigid pave­ments across the coun­try. Due to the strict en­vi­ron­men­tal norms in In­dia, the mo­bil­ity ad­van­tage of the track-mounted crush­ers has helped the com­pany to shift crush­ers fre­quently at strate­gic lo­ca­tions for op­ti­mum pro­duc­tion of qual­ity ag­gre­gates and the GSB, which is re­quired in vol­umes. Con­tin­u­ous sup­port by the TEREX ser­vice and sup­port team has kept the ma­chines run­ning to en­able speed of con­struc­tion and, in turn, helped GR In­fra to main­tain the com­pany’s USP of com­plet­ing projects on or be­fore time.

Mr. RL Kashyap Sr. Vice Pres­i­dent - Pro­cure­ment G R In­fra Projects

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