AIR ENTRACTION PORES IN THE STRUCTURE OF AERED CONCRETE

Bulletin of Belgorod State Technological University named after. V. G. Shukhov Pub Date : 2023-09-29 DOI:10.34031/2071-7318-2023-8-12-8-15

K. Suleymanov

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Abstract

Aerated concrete is one of the most popular building materials, which has unique properties such as light weight, high sound and heat insulation characteristics and strength. However, its porous structure may reduce its strength and durability. In this article, the author examines the various types of pores in aerated concrete and their effect on its properties. Gel and capillary pores are the main types of pores that are formed during the production of aerated concrete. Air (gas) pores are formed as a result of a chemical reaction between gas and binder. They also affect the properties of aerated concrete, but to a lesser extent than gel and capillary ones. However, air entrainment pores negatively affect the quality of aerated concrete. This type of pore is formed when pouring an aerated concrete mixture and represents air bubbles that reduce the strength of the material and impair its thermal insulation properties. To improve the quality of aerated concrete and prevent the formation of air entrainment pores, it is necessary to optimize production technologies and control the pouring process. The article also discusses the features of the formation of an air entrainment pore and the transformation of the shape of entrained air in an air entrainment pore with the shape of an inverted drop.

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沥青混凝土结构中的引气孔

加气混凝土是最受欢迎的建筑材料之一，具有重量轻、隔音隔热性能强等独特性能。然而，其多孔结构可能会降低其强度和耐久性。在本文中，作者将探讨加气混凝土中的各类孔隙及其对混凝土性能的影响。凝胶孔隙和毛细管孔隙是加气混凝土生产过程中形成的主要孔隙类型。气（气体）孔隙是由于气体和粘结剂之间的化学反应而形成的。它们也会影响加气混凝土的性能，但影响程度比凝胶气孔和毛细气孔要小。然而，夹气孔会对加气混凝土的质量产生负面影响。这种孔隙是在浇注加气混凝土混合物时形成的，代表气泡，会降低材料的强度并损害其隔热性能。为了提高加气混凝土的质量并防止形成夹气孔，有必要优化生产技术并控制浇注过程。文章还讨论了夹气孔形成的特点，以及夹气孔中夹带空气的形状与倒滴形状的转变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Bulletin of Belgorod State Technological University named after. V. G. Shukhov

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