Assessment of Engineering Properties of Al-Haweri Scoria, NW Sana’a, Yemen

Ibrahim A. AL-AKHALY; Abubaker A. AL-SAKKAF

Makale detayları

Assessment of Engineering Properties of Al-Haweri Scoria, NW Sana’a, Yemen

Yazarlar:

Ibrahim A. AL-AKHALY | Abubaker A. AL-SAKKAF

Yayıncı:

TMMOB Jeoloji Mühendisleri Odası

Ana Başlıklar:

Doğa bilimleri

Dergi:

Jeoloji Mühendisliği Dergisi 2020 Vol.44 Issue 2, pp.117-130

Belge Tipi:

Makale

Yayın Tarihi:

12/2020

Belge Dili:

Türkçe

Document ID (Org No.):

2000732683

Sıklık:

İki Yıllık

eISSN:

2564-6753

pISSN:

1016-9172

Özet:

 

Yemen has an appreciable amount of scoria aggregate, but a very small proportion is used as cement additions
by local cement factories in blended Portland cement production and very rarely as aggregates into the production
of lightweight blocks. Scoria aggregates are widespread in and around the volcanic cones present in Sana’a-Amran
volcanic field. This paper presents the results of evaluation of engineering properties of natural scoria, collected from
Al-Haweri volcanic cone, NW Sana’a, Yemen as lightweight aggregate. Chemical composition and petrographical
characteristics of scoria were determined. The physical properties of the scoria aggregate such as flakiness and
elongation indices, specific gravity, water absorption, unit weight, clay lumps and materials finer than 75μm gave
acceptable results, but the gradation indicated it would need to be processed before use in a mix. The porosity is
high, 60.79%. The Los Angeles abrasion and the aggregate crushing values are higher than the limits of ASTM and
BS specification, but the aggregate impact value is close to the upper limits of BS specification. The soundness is
within the ASTM specification limits. Therefore, it can be concluded that scoria aggregates can be used to produce
structural concrete and masonry blocks with a relatively low density. The scoria aggregates satisfied the requirements
of lightweight aggregate for structural concrete and masonry blocks purposes.

Makale detayları

Assessment of Engineering Properties of Al-Haweri Scoria, NW Sana’a, Yemen

Yazarlar: Ibrahim A. AL-AKHALY | Abubaker A. AL-SAKKAF

Yayıncı: TMMOB Jeoloji Mühendisleri Odası

Ana Başlıklar: Doğa bilimleri

Dergi: Jeoloji Mühendisliği Dergisi 2020 Vol.44 Issue 2, pp.117-130

Belge Tipi: Makale

Yayın Tarihi: 12/2020

Belge Dili: Türkçe

Document ID (Org No.): 2000732683

Sıklık: İki Yıllık

eISSN: 2564-6753

pISSN: 1016-9172

Sayı

Yazarlar:

Ibrahim A. AL-AKHALY | Abubaker A. AL-SAKKAF

Yayıncı:

TMMOB Jeoloji Mühendisleri Odası

Ana Başlıklar:

Doğa bilimleri

Dergi:

Jeoloji Mühendisliği Dergisi 2020 Vol.44 Issue 2, pp.117-130

Belge Tipi:

Makale

Yayın Tarihi:

12/2020

Belge Dili:

Türkçe

Document ID (Org No.):

2000732683

Sıklık:

İki Yıllık

eISSN:

2564-6753

pISSN:

1016-9172