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Title:
METHODS FOR PRODUCING A CEMENT PASTE, A MORTAR, AND A CONCRETE CONSTRUCTION MATERIAL BY UTILISING AN AQUEOUS SERICIN SOLUTION, RESPECTIVE CONSTRUCTION MATERIALS AND USES
Document Type and Number:
WIPO Patent Application WO/2024/095062
Kind Code:
A1
Abstract:
The invention refers to a method of producing a cement paste construction material (4) by mixing a cement (3), an aqueous sericin solution (1) in a first mixing zone (2). Subsequently, the cement paste construction material (4) is mixed with a fine-grain bulk material mixture (6) in a second mixing zone (5) to obtain a mortar construction material (7). Subsequently, the mortar construction material (7) is mixed with a coarse-grain bulk material mixture (9) in a third mixing zone (8) to obtain a concrete construction material (10). Admixtures (11) may be feed to each mixing stage. The present invention also contributes to saving water in the concrete production, substituting it by a silk degummed wastewater as a hydration agent. The compositions according to the invention present increased mechanical properties, namely compressive strength, prevent mold growth or proliferation of fungi or other microorganisms, and are durable and stable under thermal oscillations.

Inventors:
BRIGA DE SÁ ANA CRISTINA (PT)
ALVES JERÓNIMO ALEXANDRE JOSÉ (PT)
GOMES DUARTE TIAGO ANDRÉ (PT)
MARTINS LOUREIRO BRUNA FILIPA (PT)
GONÇALVES PINTO FERNANDES RUI FRANCISCO (PT)
CORTÉS DE ZEA BERMUDEZ VERÓNICA (PT)
Application Number:
PCT/IB2023/056265
Publication Date:
May 10, 2024
Filing Date:
June 16, 2023
Export Citation:
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Assignee:
UNIV DE TRAS OS MONTES E ALTO DOURO (PT)
International Classes:
C04B28/04; C04B24/14
Foreign References:
CN113698150A2021-11-26
CN110436817A2019-11-12
GB2475024A2011-05-11
GB2475024A2011-05-11
CN113698150A2021-11-26
CN111320411A2020-06-23
Other References:
VAITHANOMSAT ET AL: "Sericin separation from silk degumming wastewater", SEPARATION AND PURIFICATION TECHNOLOGY, ELSEVIER SCIENCE, AMSTERDAM, NL, vol. 59, no. 2, 14 January 2008 (2008-01-14), pages 129 - 133, XP022420771, ISSN: 1383-5866, DOI: 10.1016/J.SEPPUR.2007.05.039
ORLANDI GIULIA ET AL: "Eco-sustainable silk sericin from by-product of textile industry can be employed for cosmetic, dermatology and drug delivery", JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, vol. 95, no. 9, 11 May 2020 (2020-05-11), Hoboken, USA, pages 2549 - 2560, XP093084254, ISSN: 0268-2575, DOI: 10.1002/jctb.6441
MILLER, S.AHORVATH, AMONTEIRO, P.J.M: "Impacts of booming concrete production on water resources worldwide", NAT SUSTAIN, vol. 1, 2018, pages 69 - 76, Retrieved from the Internet
D. N ROCKWOODR. C PREDAT. YUCELX. WANGM. L LOVETTD. L KAPLAN, NATURE PROTOCOLS, vol. 6, no. 10, 2011, pages 1612 - 1631
Attorney, Agent or Firm:
INVENTA INTERNATIONAL S.A. (PT)
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