Concrete

Concrete steps

Published

12 years ago

June 30, 2014

admin

Finally, the Road Transport and Highways Ministry is moving in the direction we have long been waiting for. With the Union Road Transport, Highways and Shipping minister, Nitin Gadkari, committed to building better infrastructure with the right material, the industry can now see good days ahead.

Concrete roads cost almost just as much as laying bitumen roads and they last longer too. Concrete roads have a life expectancy of 20-30 years, without any need for relaying. Bitumen roads, at their theoretical best value, can survive for 5 years without repair. Do we need any other reason to opt for concrete roads? Why then have we been postponing this much needed shift? While developed countries on an average have 30 per cent of their road network in concrete, we are still at 2 per cent.

Even after 65 years of independence, the country is still relying on obsolete conventional bitumen pavement technology. These roads eat away huge funds in their regular maintenance, which otherwise would have been used for addition of new network of roads and creating new capital assets. About 70 per cent of the bitumen requirement for the road works in India is met through imports, costing huge sums of forex to the nation. On the other hand, cement an indigenous product of international quality is available in plenty in India. The present cement capacity is 360 mtpa, estimated to increase to about 700 mtpa by 2022, which will comfortably meet all the domestic cement demand.

Is it just the lack of political will and inefficiency? Or is it the scope of corruption available in laying bitumen roads that has kept the nation in a pothole? Most bitumen roads require a fresh layer in a year or two. And that works out very well for the bitumen road contractors.

Profit earned in laying one km of a tar road is almost four times of that earned in laying a concrete road. Plus, tar roads require relaying, thus assuring repeat business to the contractor. The economics here is very obvious and the road ministry is taking a bold step in going against this babu-contractor nexus.

Concrete

Ultra Concrete Age

Prof. A. S. Khanna (Retd., IIT Bombay) on how Ultra-high performance concrete (UHPC) improves strength, durability and lifecycle performance.

Published

1 week ago

April 1, 2026

admin

The need of present time is stronger buildings, industrial or common utility buildings, such as Malls, Railway stations, hospitals, offices, bridges etc. For this, there is need of long durable, tough and stable concrete, which could stand under normal and seismic conditions. Tough railway bridges are required for bullet trains to pass without any damage. Railway tunnels, sea-links, coastal roads, bridges and multistorey buildings, are the need of the hour. The question comes, is the normal cement called OPC is sufficient to take care of such requirements or better combination of cements and sand mixtures is required?

Introduction

A good stable building structure can be made with a good quality of cement+sand+water system. Its quality can be enhanced by keeping the density of admixture higher (varies from 30 in normal buildings to bridges etc to 80). Further enhancement in the properties of various cements admixtures is made by adding several additives which give additional strength, waterproofing, flexibility etc. These are called construction chemicals…

To read the full story Click Here

Concrete

NCB Signs MoU With Cement Manufacturer To Boost Construction Skills

Partnership to deliver nationwide training and certification

Published

1 week ago

March 31, 2026

admin

The National Council for Cement and Building Materials (NCB) has signed a memorandum of understanding with a leading cement manufacturer to strengthen skill development and capacity building in the construction sector. The agreement was formalised at NCB premises in Ballabgarh and was signed by the Director General of NCB, Dr L. P. Singh, and the head of technical services at UltraTech Cement Limited, Er Rahul Goel. The collaboration seeks to bring institutional resources and industry expertise into a structured national training effort.

The partnership will deliver structured training and certification programmes across the country aimed at enhancing the capabilities of civil engineers, ready?mix concrete (RMC) professionals, contractors, construction workers and masons. Programme curricula will cover material quality testing, concrete mix proportioning, durability assessment and sustainable construction practices to support improved construction outcomes. Emphasis is to be placed on standardised assessment and certification to raise practice levels across diverse construction roles.

Practical learning elements will include workshops, site demonstrations, technical seminars and exposure visits to plants and RMC facilities to strengthen applied skills and on?site decision making. The Director General indicated confidence that a large number of professionals and workers would be trained over the next three to five years under the initiative. The partnership is designed to complement flagship government schemes such as the Skill India Mission and to align training outputs with national infrastructure priorities.

By combining the council’s technical mandate with industry experience, the initiative aims to develop a more skilled and quality?conscious workforce capable of meeting rising demand in infrastructure and housing. NCB will continue to coordinate programme delivery and quality assurance while industry partners provide practical exposure and technical inputs. The collaboration is expected to support long?term capacity building and more sustainable construction practices nationwide.

Concrete

JSW Cement Commissions Nagaur Plant, Enters North India

New Rajasthan unit boosts capacity to 24.1 MTPA and expands reach

Published

1 week ago

March 30, 2026

admin

JSW Cement has strengthened its national presence by commencing production at its greenfield integrated cement plant in Nagaur, Rajasthan, marking its entry into the north Indian market.

With this commissioning, the company’s installed grinding capacity has increased to 24.1 MTPA, while total clinker capacity, including its joint venture operations, stands at 9.74 MTPA.

The Nagaur facility comprises a 3.30 MTPA clinkerisation unit and a 2.50 MTPA cement grinding unit, with an additional 1.00 MTPA grinding capacity currently under development. Strategically located, the plant is positioned to serve high-growth markets across Rajasthan, Haryana, Punjab and the NCR.

The project has been funded through a mix of equity and long-term debt, with Rs 800 crore allocated from IPO proceeds towards part-financing the unit.

Parth Jindal, Managing Director, JSW Cement, stated that the commissioning marks a key milestone in the company’s ambition to become a pan-India player. He added that the project was completed within 21 months and positions the company to achieve its targeted capacity of 41.85 MTPA by FY29.

Nilesh Narwekar, CEO, JSW Cement, highlighted that the expansion aligns with the company’s strategy to tap into rapidly growing northern markets driven by infrastructure development. He noted that the company remains focused on delivering high-quality, eco-friendly cement solutions while progressing towards its long-term capacity goal of 60 MTPA.

The Nagaur plant has been designed with sustainability features, including co-processing of alternative fuels and a 7 km overland belt conveyor for limestone transport to reduce road emissions. The facility will also incorporate a 16 MW Waste Heat Recovery System to improve energy efficiency and lower its carbon footprint.

JSW Cement, part of the JSW Group, operates across the building materials value chain and currently has eight plants across India, along with a clinker unit in the UAE through its joint venture.