Lightweight Cellular Hollow Concrete Blocks Containing Volcanic Tuff Powder, Expanded Clay and Diatomite for Non-Load Bearing Walls

IF 0.8 4区工程技术 Q4 ENGINEERING, CIVIL

Teknik Dergi Pub Date : 2020-11-01 DOI:10.18400/tekderg.426034

L. Gündüz, Şevket Onur Kalkan

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引用次数: 7

Abstract

Lightweight cellular hollow concrete (LCHC) block is a type of masonry unit manufactured by precast technique. LCHC block is produced by the mixing of Portland cement, volcanic tuff powder, expanded clay aggregate and diatomite for building applications. LCHC blocks are lightweight and being frequent cellular hollow cleavages, give excellent thermal and acoustic performance, fire resistance and high weathering resistance to the buildings. In this research work, LCHC blocks with 28 different mixture batches were cast into a mould with vibro-compacting, de-moulded immediately and transferred to a storage area for curing up to 120 days in normal air condition. Totally 21 cellular space with 10 mm in width were placed in the block design. For each mixture, twenty four block samples were prepared and tested in the air dry condition for compressive strength and water absorption in accordance with BS 1881: Part 116. This paper initially examines how volcanic tuff powder affect the characteristics of lightweight concrete masonry mixtures and also investigates the use of quartet blends containing volcanic tuff powder, expanded clay aggregate, diatomite and cement to produce LCHC blocks for walls and partitions.

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非承重墙用含火山凝灰岩粉、膨胀粘土和硅藻土的轻质蜂窝空心混凝土砌块

轻质多孔空心混凝土砌块是一种采用预制技术制造的砌体单元。LCHC砌块由波特兰水泥、火山凝灰岩粉、膨胀粘土骨料和硅藻土混合而成，用于建筑应用。LCHC砌块重量轻，经常出现蜂窝中空劈裂，为建筑物提供了出色的热学和声学性能，耐火性能和高耐候性。在这项研究工作中，28个不同混合批次的LCHC块通过振冲压实浇铸到模具中，立即脱模，并转移到存储区域，在正常空气条件下固化120天。在块体设计中，共有21个宽度为10毫米的单元空间。根据BS 1881:第116部分，对每种混合物制备24块样品，并在空气干燥条件下测试抗压强度和吸水率。本文首先研究了火山凝灰岩粉如何影响轻质混凝土砌体混合物的特性，并研究了含有火山凝灰岩粉、膨胀粘土骨料、硅藻土和水泥的四重混合物的使用，以生产用于墙壁和隔墙的LCHC砌块。

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来源期刊

Teknik Dergi 工程技术-工程：土木

自引率

30.80%

发文量

审稿时长

>12 weeks

期刊介绍： The scope of Teknik Dergi is naturally confined with the subjects falling in the area of civil engineering. However, the area of civil engineering has recently been significantly enlarged, even the definition of civil engineering has somewhat changed. Half a century ago, engineering was simply defined as “the art of using and converting the natural resources for the benefit of the mankind”. Today, the same objective is expected to be realised (i) by complying with the desire and expectations of the people concerned and (ii) without wasting the resources and within the sustainability principles. This change has required an interaction between engineering and social and administrative sciences. Some subjects at the borderline between civil engineering and social and administrative sciences have consequently been included in the area of civil engineering. Teknik Dergi defines its scope in line with this understanding. However, it requires the papers falling in the borderline to have a significant component of civil engineering.