Less concrete used, means less CO2
System and Methods for In Situ Hollow Core Slab
Patent Pending
The “In Situ” Hollow Core slab was invented to reduce the amount of natural resources on the structure of buildings, saving as much as 50% of concrete by volume, thus reducing the overall cost of the building, and what is more important, reducing the emission of CO2.
“In Situ”
The term ‘‘in- situ’’, in In Situ Hollow Core slab system, refers to a deployment at construction site of a building as opposed to a manufacturing facility indoor. Hollow core slabs produced off-site have logistics size limits to 4 feet wide by 40 feet long (max).
“In Situ” Hollow Core System has no such limits.
Hollow Core
Concrete is one of the most used products on the planet and has been around for thousands of years, first used by the Romans. Concrete is quite heavy, over 57% of its capacity is used to hold its own weight. The dead load of a 10’’ floor slab is 140 lb, to carry 60 lb live load.
Hollow cores saves as much as 50% of concrete volume.
Current building systems are not sustainable!
The worldwide production of cement powder produces
4.5 billion tons of CO2 per year
In Situ Hollow Core
SLAB SYSTEM
Typical weight of 10” concrete slab 125 to 135 lb/sqft
Hollow Core concrete slab 75 to 85 lb/sqft
Patent Pending
“Use of fiberglass rebar with the In Situ Hollow Core SYSTEM will change the building industry.”
!
Use of fiberglass rebar (instead of steel) will extend the life of the building structures by as much as 400%.
Various materials
Used for hollow cores
Recycled
Styrofoam
Styrofoam ground to nominal size, glued together into a nonpermeable casing creating a structure to support concrete. Additional benefit – diverting a large amount of Styrofoam from going to landfills.
Steel wire mesh
tube or plastic
Recycled cardboard impregnated with wax or other material for strength and to render nonpermeable.
Honeycomb
structure
Honeycomb structure made from recycled paper, Tyvec, plastic, hemp sock.
Inflateable
tube
Tyvec or similar material to protect the tube from concrete. Tube material can vary, such as firehose material, automotive tube material and expandable water hose material. When concrete is set, the tube can be deflated and removed for the next job.
Recycled paper
with wood
reinforcement
The wood reinforcement will allow to reduce the amount of paper required to sustain the concrete above the form. Light weight wood reinforcement is removable if needed, by vacuum with grinding head.
Plastic
corrugated
flexible pipe
Similar to drain pipe.
Chair
FOR FIBER GLASS REBAR AND HOLLOW FORM
BENEFITS
Speed up the completion of the building construction.
Reduce construction cost by reducing the amount of concrete.
Reduce the weight of the building.
Reduce concrete for footing and columns.
Reduce CO2.
Better insulation.
Recycling of materials that otherwise would be sent to a landfill (all the various forms: styrofoam, carboard, wax, paper, plastic, hemp sock, Tyvec, polyurethane, rubber, wood).
Is the Production of Cement Powder Carbon Neutral?
The Numbers Behind the Story
• At average, price per ton of cement powder $150 = 675 billions industry.
• Potential carbon tax at $75 per ton = 337 billions.
If the cement producer, would use electric equipment for excavation and crushing, electric kilns, use aluminum, silicate, for the production of cement powder they could become carbon neutral, and sell their product at a premium ($300 per ton).
The worldwide production of cement powder produces
4.5 billion tons of CO2 per year (carbon credits).
Financial Savings & CO2 Reduction
The Numbers Behind the Story
A typical 300.000 sq. ft. building with 600 parking spaces would typically use 60.000m3 of concrete 45 MPA
Each cubic meter would use 450 kg of cement powder and produce 450 kg of CO2.
Transportation, blasting, crushing ball milling of clinker, 50 to 250 kg of CO2.
Each cubic meter of concrete at 45 MPA will produce .5 tons of CO2.
The In Situ Hollow Core slab with fiberglass rebar will reduce the overall weight of the building, and further reduce concrete use by 50% (30.000m3), which equals 15.000 tons of CO2 per building.
If we take into account that the average life cycle of the building structure, with minimal repairs, is 100 years, the savings on each parking space, $100.000 over the life span would produce 60 million total in savings.
Registered Office
9000 Keele Street, Unit 3 Concord, Ontario, CA L4K 0B3
Telephone
Patent Pending
