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Publication No: IN202211060661 [India] Application No: 202211060661
Title: An improved process of making cement concrete interlocking paver blocks using kota-stone slurry
Publication Date: 26-04-2024 File Date: 21-10-2022
Inventor(s): Lakhani Rajni; Kumar Rajesh
IPC Classification: C04B28/04, B32B7/12, E01C19/48, C04B111/00, B32B15/08
Abstract: The invention relates to an improved process of making cement concrete interlocking paver blocks using Kota-stone slurry. Kota- stone waste (KSW) was utilized to develop precast concrete interlocking paver blocks of strength grade ranging from M25 to M50;  after crushing-sieving and gradation of the crushed stone waste into all-in-aggregates, as per IS- 383:2016. The trials to achieve  maximum density particle grading were also done. In addition to this, Kota-stone slurry was heated at a high temperature (~850 0C) up  to 1 hr., to increase the chemical reactivity of slurry. Further, maximum use of Kota-stone slurry and quarry waste was done to  develop paver block alongwith quality control check in fresh and hardened state. Test results indicated that KSW can be effectively  used to develop concrete paver blocks. Moreover, prior to curing; two layered lacquer coating was also applied over the face layer  which decreased the permeability of surface of developed paver blocks.
CSIR-Central Building Research Institute
CSIR-Central Building Research Institute[CSIR-CBRI]
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Industrial Applications Building Materials [Building Materials, Construction Technologies Furniture etc.] Process [Environmental (Clean Tech)] Waste management [Environmental (Clean Tech)]