Brzyski Przemysław, Grudzińska Magdalena
Faculty of Civil Engineering and Architecture, Lublin University of Technology, 40 Nadbystrzycka Str., 20-618 Lublin, Poland.
Materials (Basel). 2020 Dec 2;13(23):5487. doi: 10.3390/ma13235487.
Raw clay is used nowadays in construction as a component of mortars and plasters and as a binder in composites based on straw or shives. It is a material with good sorption properties and vapor permeability, but it is susceptible to shrinkage, is not resistant to water, and also is characterized by low mechanical strength, which makes it impossible to be used, for example, in external plasters. Various additives and admixtures are used to improve selected properties of clay mortars. The article presents the research results and assessment of the effect of glauconite clay mortar modification with an admixture of linseed oil varnish on selected properties. Admixtures in the amounts of 1%, 2%, and 3% in relation to clay weight were used. Flexural and compressive strength, water resistance, shrinkage, drying capacity, density, and porosity of mortar, were tested. The admixture of linseed oil varnish in the amounts used in the investigation had a positive effect on some of the tested properties; regardless of the quantity of the admixture, the modified mortars had better parameters concerning flexural strength, shrinkage reduction, and water resistance than the reference mortar, without admixture.
如今，生黏土在建筑中被用作灰浆和灰泥的一种成分，以及基于稻草或刨花的复合材料中的黏合剂。它是一种具有良好吸附性能和透气性能的材料，但它容易收缩，不耐水，并且机械强度较低，这使得它例如无法用于外墙灰泥。人们使用各种添加剂和外加剂来改善黏土灰浆的特定性能。本文介绍了用亚麻籽油清漆外加剂对海绿石黏土灰浆进行改性后，其对选定性能的影响的研究结果和评估。使用了相对于黏土重量为1%、2%和3%的外加剂。测试了灰浆的抗折强度、抗压强度、耐水性、收缩率、干燥能力、密度和孔隙率。在所研究使用量的亚麻籽油清漆外加剂对一些测试性能有积极影响；无论外加剂的用量如何，改性灰浆在抗折强度、减少收缩和耐水性方面的参数都比不含外加剂的参考灰浆更好。
