Concrete

Effective communication is essential in precast detailing

Published

1 year ago

October 19, 2023

admin

Vijay Shah, Managing Partner, India Precast, talks about the process of making precast concrete shapes, with a focus on the challenges that accompany the production.

Tell us about the process of casting concrete in shapes.
Precast concrete products are made through pouring either wet cast or dry cast concrete into moulds, which are then hardened and removed to be dispatched. These moulds could be from concrete posts, pillars, columns, slabs etc. This benefits the construction process as it can be difficult to manoeuvre or create the right shapes and sizes by pouring the concrete on site.

The process of making precast shapes involve:

Build a form. The inside of the form defines the shape that is being created. This form is then filled up with cement and is kept to dry and harden.
Clean the mould before adding cement to it. The mould should be lined with materials or chemicals that allow for the hardened concrete structure to retrieve from it.
Cement or concrete mix is then created to be poured into the moulds for setting. We use a variety of concrete grades like M25, M30, M35, M40, and M45 for this mix. The mould poured in cement is left alone for 24 hours to harden and removed once set.
Once set, a hard mould is either broken or the cast is retrieved from a soft mould by shaking, which is ready to be transported to the location of construction or building activity.

What are the standard sizes and shapes of precast made by your organisation?
Our organisation makes various types of precast elements like:

Solid load bearing floor slabs, load bearing walls, facades, sandwich wall panels and cladding panels
Floor and roof slabs, made from prestressed load bearing hollow concrete slab and ribbed slab. Floors or roofs are also made from half floor slab or semi-finished floor slab with
lattice girder.
Precast stair cases, balcony, toilet pods, lift shafts and water tanks
Prestressed lintel, frames, beams, column and double tee beam
Internal partition walls, made from light-weight hollow core wall panels instead of AAC blocks or bricks
Sandwich walls, beams, columns, I-Beam, tee beam, lintel, footings, boundary walls, retaining walls, fencing poles, U-drainage or trench, box culvert, jersey barriers, covers, paver blocks etc.

Explain the moulds used to make these shapes. Do you customise moulds?
Concrete moulds are moulds that are used to shape the concrete you are working with. The concrete will adopt the shape of the mould as it cures. Concrete moulds are used to give concrete its finishing shape. Moulds are of various types (refer table below). We customise the moulds as per requirements.

S. No. Mould type Uses

Conventional moulds Ribbed slabs, beams, window panels, box type units and special elements
Battery moulds Interior wall panels, shell elements, roof and floor slabs
Tilting moulds Exterior wall panels where special finishes are required on one face or for sandwich panels
Long line prestressing beds Double tees, ribbed slabs, piles and beams
Extrusion machine Roof slabs and hollow core slabs

Up Next

Greener energy has a positive impact on manufacturing

Don't Miss

The market is moving towards a precast prestressing system.”

Concrete

Ramco Cements employee wins silver at Japan Para Badminton

He partnered with Paralympian Sukanth Kadam to win this medal.

Published

1 day ago

November 12, 2024

admin

Dinesh Rajaiah, an employee of Ramco Cements, won Silver medal in the men’s doubles event in the Japan Para Badminton International 2024 held in Tokyo. He partnered with Paralympian Sukanth Kadam to win this medal. Notably Sukanth Kadam had finished 4th in the men’s singles in Paris Paralympic Games which concluded in September 2024.

Japan Para Badminton International 2024 was held in Tokyo from 22nd to 27th October 2024 where more than 200 players were in the fray.

Dinesh, despite suffering a shoulder injury and having his right shoulder heavily taped, treated the audience to a nail biting final. The duo was down 16-20 in the second set and fought back to take the game to the third set where they lost 16-21. Being the last match of the event, the pair won hearts of the audience for their never give up spirit.

Dinesh breaks into the top 15 in the BWF Para World Ranking in men’s singles category and is now ranked 14 in the world. Ramco Cements has been supporting Dinesh Rajaiah ever since he showed his talent in an inter unit tournament of Ramco Cements in 2017. The company had then encouraged him to take up professional badminton coaching and has been sponsoring him for all major international tournaments. Ramco Cements wishes Dinesh all success in future tournaments.

Concrete

Asian Paints Sees 43.71% Profit Dip

Asian Paints reports significant profit decline in Q2.

Published

1 day ago

November 12, 2024

admin

Asian Paints has reported a 43.71% year-on-year decline in its net profit for Q2 FY25, amounting to a substantial reduction in earnings. The leading paint manufacturer attributed this decline primarily to increased input costs, a competitive market environment, and a slowdown in consumer demand. Despite the lower profit, the company’s revenue saw a moderate increase, reflecting its ability to maintain strong market presence in the face of challenges.

The company’s margins have been impacted by rising raw material prices, particularly in key components used in paint production. Additionally, the ongoing economic conditions, coupled with sluggish demand in certain segments, have put pressure on profitability. However, Asian Paints remains optimistic about its long-term prospects, focusing on strategic innovations and expanding its market share in the premium product segments.

In response to these challenges, the company has reaffirmed its commitment to cost-efficiency and improving operational performance. Asian Paints continues to explore new avenues for growth, including enhancing its product portfolio and leveraging its extensive distribution network to drive sales across diverse consumer segments.

Concrete

Ambuja Cements seeks CCI approval to acquire majority stake in Orient

Ambuja Cements’ stake would rise to 72.8 per cent, as per the notice filed with the CCI.

Published

1 day ago

November 12, 2024

admin

Billionaire Gautam Adani-led Ambuja Cements has sought approval from the Competition Commission of India (CCI) for the acquisition of a majority stake in CK Birla group firm Orient Cement in a deal worth Rs 81 billion.

According to a notice from the CCI, the proposed transaction involves a two-stage acquisition process, which was initiated through two share purchase agreements (SPAs) on October 22, 2024. As part of the deal, Ambuja Cements will initially acquire a 46.80 per cent stake in Orient Cement. This includes a 37.90 per cent stake from the current promoter group and an additional 8.90 per cent from certain public shareholders.

The notice further stated that following the acquisition of shares, an obligation would be triggered for the acquirer to make an open offer under the Sebi’s SAST (Substantial Acquisition of Shares and Takeovers) rules, aimed at acquiring up to 26 per cent of the expanded share capital of the target company. If the open offer is fully accepted, Ambuja Cements’ stake would rise to 72.8 per cent, as per the notice filed with the CCI.

In October, the Adani Group, led by Gautam Adani, had announced the signing of a binding agreement to acquire Orient Cement (OCL) at an equity value of Rs 81 billion. This acquisition would increase Adani Cement’s capacity by 16.6 million tonnes per annum (MTPA), which is operated through Ambuja Cements.

Ambuja Cements, part of the diversified Adani Group, is a leading cement and building materials company in India. It operates 22 integrated cement plants, 10 bulk cement terminals, and 21 grinding units across the country.