Results 251 to 260 of about 953,548 (309)

Stone-based structural materials

Precision Engineering, 1985
Abstract Several stone-based structural materials are compared, including cement concrete, polymer cement concrete and a special type of granite-based polymer concrete called Granitan. The differences between the materials, particularly for machine-tool component applications, are discussed.
exaly   +2 more sources

Influence of stone mixing agents, impression materials and lubricants on surface hardness and dimension of a dental stone die material

Acta Odontologica Scandinavica, 1975
The influence of different stone mixing agents, impression materials and lubrication methods on the surface hardness of a stone die material has been evaluated. For one impression material the dimensional effect of the mixing agents and lubrication on the dies was also studied.
E G, Johansson, S, Erhardson, L, Wictorin   +2 more
exaly   +3 more sources

Sustainability of natural stone as a construction material

2016
Natural stone is a sustainable building material. Its characteristics are overviewed in this chapter, with an emphasis on stonework durability. The environmental impact associated with its use is examined, and the further-reaching elements of sustainability are also considered.
Klemm, Agnieszka, Wiggins, David
openaire   +1 more source

Venice: Stone Material Behaviour in Connection with the Environment

MRS Proceedings, 1990
AbstractThe present study is directed to summarize several studies carried out in the recent past on stone decay processes taking place in the lagoon environment of Venice. The behaviour of the main types of stones used in Venetian buildings has been considered.Istrian stone, Verona red stone and Carrara marble were studied.The knowledge of the ...
BISCONTIN, Guido, V. Fassina, P. Maravelaki, ZENDRI, Elisabetta   +3 more
openaire   +2 more sources

Stone as a structural material. Part 3: Post-tensioned stone structures

The Structural Engineer, 2020
To utilise stone’s high ratio of compressive to tensile strength to maximum effect, stone structures can be compressed using tensioned cables or bars. Post-tensioned stone increases the failure load of stone in bending, but also the stiffness of a structure by reducing joint cracking.
Scott Boote, Alex Lynes
openaire   +1 more source

Stone Materials of the Necropoleis Monuments

2018
Based on the results of many years of monitoring, the unique stone material of tombstones in the historical Necropoleis of the Museum of City Sculpture is described, represented by marbles, limestones, granites and other rocks. The most probable locations of deposits of the used decorative facing stone were in most cases identified with the help of ...
Olga V. Frank-Kamenetskaya, Evgeniya I. Polyanskaya, Vera V. Manurtdinova   +2 more
openaire   +1 more source

Compatibility of alginate impression materials and dental stones

The Journal of Prosthetic Dentistry, 1971
Abstract Four alginate (irreversible hydrocolloid) impression materials certified as meeting A.D.A. specification 18 for hydrocolloid impression materials were tested for compatibility with five dental stones (20 tests). Five samples of each alginate-stone combination were made and evaluated (100 casts).
R M, Morrow, C E, Brown, B E, Stansbury, J A, DeLorimier, J M, Powell, K D, Rudd   +5 more
openaire   +2 more sources

The First Materials (Stone Age and Copper—Stone Age)

2004
Materials have accompanied mankind virtually from the very beginning of his existence. Among the first materials utilized by man were certainly stone and wood, but bone, fibers, feathers, shells, animal skin, and clay also served specific purposes.
openaire   +1 more source

The contact angles of die stone on impression materials

The Journal of Prosthetic Dentistry, 1976
0 bservations in the clinic at the Medical College of Georgia, School of Dentistry, indicated that certain impression materials appeared to yield casts that contained more entrapped air bubbles than appeared with other impression materials when the same die stone was used.
R A, Lorren, D J, Salter, C W, Fairhurst
openaire   +2 more sources

Stone as a structural material. Part 4: Contemporary loadbearing stone buildings

The Structural Engineer, 2020
Not all contemporary innovation is about exploiting digital fabrication or creating wild new forms. By applying a new way of thinking to traditional materials and craft, geometrically simple and innovative structures can be realised that are both elegant and environmentally ethical. Webb Yates, in conjunction with The Stonemasonry Company, has begun to
Scott Boote, Mark Day, Steve Webb
openaire   +1 more source