Displaying items by tag: AAC

UK: SigmaRoc subsidiary CCP has launched Greenbloc Standard, Ultra and Premium. The new designations correspond to 50%, 80% and 100% cement substitution. Professional Builder News has reported that Using Greenbloc Standard reduces structures’ CO₂ emissions by 77% compared with structures built with conventional ordinary Portland cement (OPC)-based blocks. For an average semi-detached house, this is equivalent to 2.7t of CO₂.

CCP general manager Phil Rotheram said “The expansion of our Greenbloc range continues our commitment to sustainable alternatives to our product offering as we fully commit to the challenges of removing embodied carbon from the built environment.”

Greenbloc Ultra featured in a gold medal-winning garden at the RHS Chelsea Flower Show 2023 in May 2023.

India: Siam Cement Big Bloc Construction Technologies has bought 60,000m³ of land at Ramosadi in Gujarat's Kheda District. The concrete producer informed the BSE Exchange that it plans to build an autoclaved aerated concrete (AAC) panel and block plant at the site.

India: CK Birla Group’s fibre cement roofing subsidiary HIL has agreed to acquire Fast Build Blocks for US$8.22m in a ‘slump sale.’ Fast Build Blocks produces autoclaved aerated concrete (AAC) blocks in Cuttack, Odisha. Press Trust of India News has reported that HIL is using the acquisition to establish a leadership position in the Eastern Indian market.

UK: Quinn Building Products has fitted a waste heat recovery (WHR) plant into the aircrete block production process at its Quinn Lite Plant in Fermanagh. The installation will pump thermal energy from excess heated water back into the pre-curing chamber to sustain the chemical processes by which the blocks are aerated. Quinn Lite production manager Kieran McGorman said that the upgrade ‘forms part of a larger, company-wide drive to minimise the impact of our operations on the environment and to maximise efficiencies wherever possible.’

Nepal: The Nepalese government has implemented new cement regulations specifying the minimum compressive strength of 33MPa. The Republica newspaper has reported that this will follow the 1997 Cement Standard in restricting magnesia (MgO) content to 5% and insoluble residues to 2%. Two higher grades will designate cement with compressive strengths of 44MPa and 55MPa.

The government also introduced regulations governing the compression strength, insulation and density of autoclaved aerated concrete (AAC) blocks.