Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Lecture

Granular and Building Materials in Space

Description

This lecture explores the challenges of granular matter in non-equilibrium physics and its applications in industrial processes and space exploration. Investigations in low and zero gravity are crucial for understanding granular gases, fluids, and solid packings. The talk addresses research pillars in microgravity, Lunar exploration, and applications on Earth, emphasizing the importance of utilizing resources found in space. The lecture also delves into the implications for building materials like concrete, which has a significant environmental impact due to CO2 emissions.

This video is available exclusively on Mediaspace for a restricted audience. Please log in to MediaSpace to access it if you have the necessary permissions.

Watch on Mediaspace

Official source

Related concepts (32)

Concrete

Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. When aggregate is mixed with dry Portland cement and water, the mixture forms a fluid slurry that is easily poured and molded into shape.

Reinforced concrete

Reinforced concrete, also called ferroconcrete, is a composite material in which concrete's relatively low tensile strength and ductility are compensated for by the inclusion of reinforcement having higher tensile strength or ductility. The reinforcement is usually, though not necessarily, steel bars (rebar) and is usually embedded passively in the concrete before the concrete sets. However, post-tensioning is also employed as a technique to reinforce the concrete. In terms of volume used annually, it is one of the most common engineering materials.

Prestressed concrete

Prestressed concrete is a form of concrete used in construction. It is substantially "prestressed" (compressed) during production, in a manner that strengthens it against tensile forces which will exist when in service. This compression is produced by the tensioning of high-strength "tendons" located within or adjacent to the concrete and is done to improve the performance of the concrete in service. Tendons may consist of single wires, multi-wire strands or threaded bars that are most commonly made from high-tensile steels, carbon fiber or aramid fiber.

Lunar resources

The Moon bears substantial natural resources which could be exploited in the future. Potential lunar resources may encompass processable materials such as volatiles and minerals, along with geologic structures such as lava tubes that, together, might enable lunar habitation. The use of resources on the Moon may provide a means of reducing the cost and risk of lunar exploration and beyond.

Artificial gravity

Artificial gravity is the creation of an inertial force that mimics the effects of a gravitational force, usually by rotation. Artificial gravity, or rotational gravity, is thus the appearance of a centrifugal force in a rotating frame of reference (the transmission of centripetal acceleration via normal force in the non-rotating frame of reference), as opposed to the force experienced in linear acceleration, which by the equivalence principle is indistinguishable from gravity.

Related lectures (37)

Local Fields and Correlations in Ising Models

Covers local fields and correlations in Ising models and conformal field theory.

Concrete and Sustainability: Challenges in Structural Engineering

Delves into challenges in structural engineering, emphasizing sustainability, concrete design, and energy efficiency.

Concrete Durability: Carbonation and Chlorides

Explores concrete carbonation, reinforcement corrosion, prevention, and repair strategies, focusing on chlorides and freeze-thaw cycles.

Concrete Bridges: Design and Construction

Covers the design and construction of concrete bridges, focusing on integral bridges and potential problems.

Concrete Durability: Corrosion and Repair