Study of the mechanical behavior and durability of mortars based on prepared sand

• Autorzy: Noui Ammar , Bouglada Mohammed Sallah , Belagraa Larbi , Achour Yacine , Abderazak Bouzid

Identyfikatory

DOI

10.37190/msc202704

• Języki publikacji: EN

Abstrakty

EN

Sand occupies a great proportion of the cementitious matrix product and in particular mortars. Hence, the study of fine aggregates used for concrete and mortar in general, deserves to be objects of research including sand which has always been considered as inert material, whose role is exclusively physical. The study of mortars performances based on prepared sand to assess the effect of the type and rate of substitution of mineral additions pozzolana and blast furnace slag of a natural sand fine fraction (sieve diameter less than 0.16 mm) is seen as the main objective of the present experimental research work. The natural sand replaced size is less than 160 µm and for rheological reasons the maximum replacement rate of natural sand is limited to 10%. The results obtained show a significant improvement of the mechanical properties for the mortars based on the new activated sand. With regard to durability tests of HCl and H₂SO₄ acids chemical attacks, the substitution of the quartz by active mineral additions in the sand-size skeleton allows an advantageous reduction in loss of resistance up to 50% and a mass gain around 75%.

Słowa kluczowe

EN

mineral addition; substitution; natural sand; activated sand; mechanical characteristics; durability

• Wydawca: Wydział Geoinżynierii, Górnictwa i Geologii, Instytut Górnictwa Politechniki Wrocławskiej
• Czasopismo: Mining Science
• Rocznik: 2020
• Tom: Vol. 27
• Strony: 47--59
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Noui Ammar

• Department of Civil Engineering, Faculty of Science and Technology, Elbachir El Ibrahimi University, Bordj Bou Arréridj University, 34030, Algeria

autor

Bouglada Mohammed Sallah

• Department of Civil Engineering, Faculty of Science and Technology, Elbachir El Ibrahimi University, Bordj Bou Arréridj University, 34030, Algeria

autor

Belagraa Larbi

• Department of Civil Engineering Faculty of Technology, University Med Boudiaf of M’sila, Algeria (28.000)

autor

Achour Yacine

• Department of Civil Engineering, Faculty of Science and Technology, Elbachir El Ibrahimi University, Bordj Bou Arréridj University, 34030, Algeria

autor

Abderazak Bouzid

• Department of Material Science, Faculty of Science and Technology, Elbachir El Ibrahimi University, Bordj Bou Arréridj University, 34 030, Algeria

Bibliografia

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