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Modular Concrete Curing: A green alternative to curing process

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The traditional process of curing concrete is cumbersome, requires extensive labour work and leads to significant quantities of water loss. Ambuja has introduced a waterless curing technique in India that is economical and environment friendly.

Any cement concrete product or structure has to go through a curing process when the product or structure gains strength. The process of curing is done mainly with water. The chemical action between cement and water helps in hardening of concrete.

Curing must be done for a certain period of time so that concrete achieves its potential strength. It is very important to do curing properly as it crucial for the strength and durability of the concrete product or structure. The amount of time curing is to be done depends on the purpose of the concrete product or structure, temperature and humidity of the atmosphere.

Traditional curing process

Traditionally, curing is done by pouring or spraying water on concrete or mortar surfaces for an adequate period of time. Water has to be continuously replenished as and when it evaporates due to high temperature and low humidity. If the water dries out the strength of the concrete structure or surface will be impacted.

On flat surfaces such as pavements, roads, sidewalks and floor slabs curing is done by ponding water on the exposed top surface. This is done by making small bunds a few hours after the concrete work is over.

Typically, masons and labourers build bunds with cement and sand on flat concrete surfaces. Water is then poured on the surface and retained for a few days. On surfaces that cannot hold water, labourers spray water several times during the day for several days.

History and description of the technology

Ambuja Cements has come up with an alternative to combat difficulties in managing the traditional method of curing, the Ambuja Modular Curing Solution (AMCS). AMCS entails the use of a plastic sheet to prevent water losses due to evaporation, protects against strong winds, low humidity and high ambient temperatures.

How it can be used/ installed

Surfaces, which are concreted or cemented, are covered by plastic sheets primarily to prevent loss of humidity. All that the contractor has to do is to inform the service providers at Ambuja. The site engineer from Ambuja visits the premises where concrete is being poured and makes necessary arrangement at the site to cover the laid concrete. Once concrete is poured the cover is laid on top. The polymer covering comes in standard sizes that can be joined end to end to make a larger sheet. The joint is strong and water tight and does not let water or moisture to seep out. It is a quick and hassle free process.

Advantages for the construction industry

The biggest benefit is saving of water. About 12,000 litres of water required for curing 100 square metres of slab surface could be saved on an average. In India, many places are extremely hot and arid. Water availability is a serious issue. Under these circumstances curing process is not always done well. Also, labourers are required to build bunds on cemented surface or spray water several times during the day. Many a times the slab may have dry patches due to inappropriate/insufficient water application on the surface. AMCS is a service that helps reduce water usage and lower labour and other costs.

Its availability in India

At present AMCS is a service and is being expanded through its channel partners. The response to AMCS has been quite encouraging as curing is done effectively without hassles, water or labour. For Ambuja Cements, AMCS is yet another initiative towards sustainability.

Concrete

Cement Makers’ Margins To Fall Rs 50-75 Per Tonne Amid West Asia Conflict

Crisil Sees Margins Easing Despite Steady Demand

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Crisil said operating margins of Indian cement manufacturers are expected to decline by Rs 50-75 per tonne (t) this fiscal to Rs 925-950 per t due to higher input costs triggered by the West Asia conflict. The analysis covered 18 cement companies accounting for nearly 90 per cent of India’s domestic cement capacity and noted margins had improved sharply to around Rs 1,000 per t in fiscal 2026.

Crisil noted that the reduction would be driven mainly by higher power and fuel costs, which account for about 30 per cent of total costs, as petcoke and imported coal prices have surged amid geopolitical uncertainties. Freight costs, which account for about a quarter of total costs, are also expected to remain elevated because of higher diesel prices. The impact on profitability is likely to be more pronounced in the first half of the fiscal year before easing commodity prices moderate cost pressures later.

The rating agency said steady domestic demand and strong balance sheets should keep credit profiles stable despite the moderation in margins. Green energy currently accounts for 35-40 per cent of the sector’s total electricity consumption and is expected to partly cushion higher energy costs. Operating cash flows are likely to remain resilient, supported by projected 6-7 per cent growth in cement demand this fiscal.

Crisil highlighted that demand growth will be driven primarily by infrastructure spending, which meets about one-third of sector consumption, and by a nearly 18 per cent higher budgetary allocation for core ministries that should support project execution. Weaker rural housing demand amid pressure on agricultural incomes from a possible below-average monsoon may be offset by improved urban housing demand supported by favourable home-loan rates and a strong pipeline of Pradhan Mantri Awas Yojana-Urban projects. Ongoing capacity additions will keep capital expenditure elevated and may lift net debt to EBITDA to between 1.2 and 1.4 times from around 1.0 time last fiscal, though ratios are expected to remain healthy.

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Concrete

UltraTech Board Approves Rs 50 bn Fundraise Via NCDs

Company to issue half a million debentures for expansion plan

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UltraTech Cement’s board of directors has approved raising Rs 5,000 crore (Rs 50 bn) through non?convertible debentures issued in rupees.

The finance committee cleared a proposal to issue up to 500,000 fully paid, unsecured, listed, rated, redeemable, rupee?denominated, non?convertible, non?cumulative debentures of Rs 1 lakh each (Rs 0.1 mn each), aggregating to the Rs 5,000 crore programme.

As of June 2026 the firm reported net debt of Rs 15,875 crore (Rs 158.75 bn) and said its capacity expansion projects under execution are backed by capital expenditure of about Rs 17,000 crore (Rs 170 bn) over the next two to two?and?a?half years.

UltraTech spent Rs 9,500 crore (Rs 95 bn) on capital expenditure in financial year 2026 and in April the group crossed 200.1 mn tonnes per annum of domestic grey cement capacity and 205.5 mn tonnes per annum of global capacity.

The chief financial officer indicated the company would take consolidated capacity beyond 242 mn tonnes per annum, with grey cement capacity reaching 212.7 mn tonnes per annum by the end of financial year 2027. He noted the net debt?to?earnings before interest, taxes, depreciation and amortisation ratio stood at 0.87 times as of June 2026 and the company was confident of ending financial year 2027 with the ratio below one time.

In the first quarter of financial year 2026?27 UltraTech’s net profit attributable to owners rose 16.8 per cent year?on?year to Rs 2,599.3 crore (Rs 25.993 bn) and revenue from operations increased 15.9 per cent to Rs 24,648.20 crore (Rs 246.482 bn). The board approval is expected to complement internal cash flows as the company advances its expansion programme.

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Concrete

Lokesh Lays Stone For Rs 31 Billion Cement Unit In Kadapa

Line-2 expansion to make Kadapa a major cement hub

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Andhra Pradesh Education and IT Minister Nara Lokesh on Wednesday laid the foundation stone for the Line-2 expansion of Dalmia Bharat Cement at Chinnakomerla village in Mylavaram Mandal in Kadapa district. The project carries an investment of Rs 31 billion (bn) and is slated for completion by the third quarter of the financial year 2028. The expansion is intended to boost industrial growth and employment generation across the Rayalaseema region.

Once commissioned, the Kadapa facility will become Dalmia Bharat’s largest integrated cement manufacturing ecosystem in southern India, creating over 1,000 direct and indirect jobs and opening new business avenues for regional micro, small and medium enterprises and transport operators. Lokesh said the expansion signalled growing corporate confidence in the state and reflected the practical ease of doing business that secured repeat investment.

He placed the project within the government’s wider economic targets and recalled the Yuvagalam padayatra commitment to generate two million (mn) jobs within five years, noting that the state would cultivate talent while industry created opportunities. Lokesh highlighted Andhra Pradesh’s competitive pursuit of major manufacturing accounts, mentioning past successes and a personal initiative to engage global investors when persuading them to anchor expansion in the state.

The plant will leverage Kadapa’s abundant limestone reserves to scale production and sustainability. Clinker capacity is planned to rise from two point five million tonnes per annum (mn tpa) to six point one mn tpa, while overall cement output will increase from three point six mn tpa to nine point six mn tpa. The unit is designed to operate on over eighty per cent renewable energy and deploy waste heat recovery, zero liquid discharge, water recycling and advanced AI systems to optimise efficiency. Industries Minister TG Bharat, BC Welfare Minister S. Savitha and Jammalamadugu MLA C. Adinarayana Reddy attended the ceremony.

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