CURRENT PHASE: PRELIMINARY DESIGN & STRUCTURAL ANALYSIS

IN-SITU RESOURCE UTILIZATION (ISRU)

LOGISTICAL CONSTRAINTS: THE PAYLOAD PENALTY

Transporting construction materials from Earth to Mars is economically unviable. With current launch costs exceeding $100,000 per kg for deep-space delivery, a single steel beam would cost millions.

STRATEGY: Tharsis Works operates on a 100% Indigenous Manufacturing protocol. We utilize local Regolith (soil) and Atmosphere to synthesize high-strength building materials in-situ.

MICROWAVE SINTERED BRICKS

Regolith simulants sintered at 1120°C via microwave energy yielded compressive strengths of 37+ MPa, exceeding residential concrete standards.

Density: ~99% (Non-porous shell)
Energy: Low-power rapid cycling.

BASALT FIBER REINFORCEMENT

Extruded continuous fibers stable up to 1000°C. Adding just 1.2% fiber volume increases flexural strength by >40% and tensile strength by 70%, preventing brittle fracture.

Durability: Immune to oxidation/rust

SULFUR CONCRETE (MARSCRETE)

A waterless 50/50 mix of molten sulfur and regolith. Achieves 60-76 MPa compressive strength (2x Portland cement) and sets fully in <24 hours upon cooling.

Advantage: 100% Recyclable via remelting.

BASALT FIBER REINFORCED GEOPOLYMER (BFRG)

Recent stress-test analysis on Tharsis Works' BFRG samples yields superior structural integrity metrics compared to non-reinforced Martian Regolith Geopolymers:

FLEXURAL STRENGTH: Addition of 0.5% - 1.0% chopped basalt fibers increases flexural strength by >40%, preventing catastrophic brittle failure under pressure [Ref: Kim et al. 2021].
THERMAL STABILITY: Maintains structural performance across extreme thermal cycles from -196°C to +1000°C. The fibers reduce thermal conductivity, acting as an integrated insulator against the Martian cold.
TENSILE INTEGRITY: Fiber integration inhibits micro-crack propagation, essential for maintaining airtight pressurization in habitation domes (101.3 kPa internal vs ~0.6 kPa external).

METRIC / PROPERTY MARSCRETE (Sulfur) SINTERED BASALT

Compressive Strength 63.0 MPa 136.0 MPa

Flexural Strength 4.5 MPa 19.5 MPa (w/ Fiber)

Max Service Temp. 119°C (Melting Point) ~1000°C

Radiation Shielding Class B (Moderate) Class A+ (High Density)

Process Energy Low (Melting only) Medium (Microwave)

MANUFACTURING PROTOCOL: BASALT FIBER (ISRU)

Transforming raw Martian regolith into high-performance structural reinforcement using 100% in-situ resources.

STEP 1: BENEFICIATION (RAW MATERIAL)

Target Chemistry: >45% SiO₂ | >12% Al₂O₃

Raw Martian regolith is mechanically crushed and passed through a Magnetic Separator to reduce excess Iron Oxide (Fe2O3). This stabilizes the melt viscosity and prevents crystallization during cooling.

Source: Surface Basalt / Gabbro rocks.
Process: Crushing -> Grinding -> Magnetic Filtering.

STEP 2: FIBERIZATION (MELT & SPIN)

Temp: 1450°C - 1500°C | Filament: 9-17μm

The refined powder is melted in solar-concentrator furnaces. The molten rock is extruded through Platinum-Rhodium (Pt-Rh) bushings containing hundreds of microscopic nozzles.

Extrusion: Continuous filament spinning at high velocity.
Energy: Direct Solar Thermal / Microwave Hybrid heating.

STEP 3: SIZING (THE CRITICAL STEP)

Agent: Silane Coupling System

This is the core of Tharsis Works' IP. Immediately upon cooling, a proprietary Silane-based sizing agent is applied to the fibers. This nano-coating creates a chemical "bridge," allowing the inorganic rock fiber to bond effectively with organic polymer matrices.

Function: Protects against abrasion and moisture.
Chemistry: Organofunctional Silanes + Antistatic agents.

STEP 4: COMPOSITE INTEGRATION

Product: Rebar & Mesh

The coated fibers are processed via Pultrusion. Bundles of rovings are pulled through a heated die and impregnated with a Bio-Polymer Matrix (PLA derived from colony greenhouses) or Sodium Silicate binders.

Result: Tharsis-B01 Rebar.
Specs: 3x Tensile Strength of Steel, 4x Lighter.

REFERENCES (TECHNICAL FOOTNOTES)

SCIENTIFIC VALIDATION:

Melt Viscosity: Singha, K. (2012). "A Short Review on Basalt Fiber."
Sizing Chemistry: Matykiewicz, D. (2020). "The effect of basalt fiber sizing on mechanical properties." [ScienceDirect]
Mechanical Performance: Luo et al. (2019). "Basalt fiber reinforced composites."
ISRU Feasibility: NASA Technical Reports on Regolith Processing.

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