Concrete

Self-loading Mobile Concrete Mixer

Published

9 years ago

November 30, 2016

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Self-loading concrete mixer can be an answer to many odd jobs where quantity of concrete is a constraint and location is difficult to reach.
A machine that can self-load aggregates, weigh batch, mix, transport and place concrete within the site as per the mix design of concrete requirement is called self-loading mobile concrete mixer (SLCM). It is utilised as a merger of loader, mobile batching plant and transit mixer for small to medium volume concrete requirements. These machines are equipped with a concrete batch controller to obtain the required quality of concrete by allowing the operator to calibrate the quantity of aggregates into the mixer as per mix design. These all-wheel drive machines are also available with crab steering, hence are highly manoeuvrable. These machines can be deployed in any kind of terrain. The SLCMs are available in various capacities such as 1 cu m drum having an output capacity of up to 3 cu m/hr, with 2 cu m drum having an output capacity of up to 8 cu m/hr and with 4 cu m drum with an output capacity of up to 12 cu m/hr. They are also available in variants as tunnel dumpers and transit mixers.

Advantages of SLCM

Fresh concrete available at site
Quality of concrete guaranteed due to reliable weigh batching system
Eliminates labour up to 70-80 per cent compared to manual mixer
Easily manoeuvrable within sites
Four-wheel drive ensures working the machine at tough site conditions
Reduces operating cost as loaders

The following features can enhance the utility of the machine:

Better turning circle will enable the machine to operate in confined spaces with ease.
Swivellable operator?s post to provide complete visibility for driving.
High level of gradeability ensures that the machine works in the toughest site condition.
Fully powered hydraulic steering options can provide for manoeuvring in narrow spaces.

Applications
SLCMs find applications in various infrastructure projects throughout the country. Due to their mobility, these machines are widely used in various applications such as canal lining, aqueducts, rural roads, ROBs, RUBs, flyovers, Railways, bridges, power transmission lines, solar projects etc.

Article courtesy: Ajax Fiori (India) Pvt Ltd

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

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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…

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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

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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

2 weeks ago

March 30, 2026

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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.