Plaster Finishing System for Block Products
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Solution Overview
Problem
Concrete and insulated concrete form (ICF) block products lack aesthetic appeal and require costly, labor-intensive coatings to enhance their appearance, with existing coatings often applied unevenly and unsuitably for various environmental conditions, leading to undesirable variance and lack of desired esthetics.
Innovation Solution
A system and method for finishing unfinished or partially finished block products involving a series of stations including trimming, coarse grinding, fine grinding, polishing, and optional cleaning and surface treatment to achieve a uniform, aesthetically pleasing plaster coating, resembling natural cut stone, while enhancing durability and weather resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If coatings are applied to concrete blocks or ICFs to improve aesthetic appeal, then the appearance quality is improved, but the uniformity and consistency of the coating application deteriorates
Solution Approach 1:
The patent uses a plaster composition that is applied to concrete blocks or ICFs to create a copied aesthetic appearance resembling natural stone or brick, rather than using the actual expensive materials. This copying approach allows for more controlled and uniform application while achieving the desired aesthetic effect.
Solution Approach 2:
The patent employs multiple finishing steps (trimming, grinding, polishing) that progressively change the surface parameters of the plaster coating. Each step modifies specific parameters such as surface roughness, thickness uniformity, and smoothness to achieve consistent aesthetic appearance across all blocks.
2Shape
If high-quality stone or brick coatings are used to enhance aesthetic appeal, then the appearance quality is improved, but the cost and labor intensity increase
Solution Approach 1:
The patent uses a plaster-based coating material that is more economical than natural stone or brick, while still achieving comparable aesthetic effects. The plaster can be applied in a controlled manner and finished to resemble premium materials without their associated costs and installation complexities.
Solution Approach 2:
The patent replaces the manual labor-intensive process of installing natural stone or brick with a plaster application system that can be more easily controlled and finished. The plaster can be applied and shaped using mechanical means followed by automated or semi-automated finishing processes.
3Shape
If plaster coating is applied to block products to improve aesthetic appeal, then the appearance quality is improved, but the coating becomes susceptible to environmental damage
Solution Approach 1:
The patent uses a plaster composition that can be formulated as a composite material with enhanced properties. The plaster can include additives and modifiers that improve its resistance to environmental factors such as moisture, freeze-thaw cycles, and UV exposure while maintaining its aesthetic qualities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The process results in block products with a consistent, esthetically appealing appearance similar to natural stone, offering improved design freedom, reduced costs, and enhanced resistance to weathering conditions, without the limitations of natural stone supply and weight.
Implementation Method 1
at least one pair of opposing blades configured to trim the plaster layer
Implementation Method 2
a coarse grinding machine configured to grind the trimmed plaster surface; a fine grinding machine configured to smooth the coarsely ground plaster surface
Implementation Method 3
a polishing machine configured to polish the finely ground plaster surface
Data Source
AI summary
Methods and systems for finishing hardened plaster layers of block products that require further finishing. The apparatus, methods, and systems may be used to finish hardened plaster or other cementitious coatings applied to one or more surfaces of block products, such as CMUs and ICFs. A finishing process includes trimming excess plaster material from the short and/or long sides of block substrates, coarsely grinding the trimmed plaster layer, finely grinding the coarsely ground plaster layer, polishing the finely ground plaster layer, optionally cleaning the polished plaster layer, and optionally applying a treatment to the cleaned plaster later. A system for finishing hardened plaster layers of block products includes one or more trimming stations to trim excess plaster material, a coarse grinding station, a fine grinding station, a polishing station, an optional cleaning station, and an optional spraying station. Finishing block products can expose crystal facets or other desired esthetic characteristics of the plaster layer to have the appearance of natural stone.