浆料石膏复合材料生产工艺优化中粘合剂弹性动态模块定量测量的特点

V. Tarasevych, Yu. G. Gasan, V. Dolgoshey
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引用次数: 0

摘要

通过研究粘结剂在硬化过程中的结构形成,确定石膏混凝土试件的最佳力学作用力矩,从而优化其硫熔体浸渍工艺。硬化粘合剂的弹性模量的时间依赖性是其重要的物理化学特性,因为它用于客观地识别结构形成的阶段,以模拟在每个阶段发生的过程。值得注意的是,在硬化粘合剂的情况下,弯曲振动的声学共振方法需要对测量技术和所获得结果的解释进行修正。由刚性细胞和倒入其中的弥散体组成的样品的共振频率动力学是细胞弹性特性的函数,弥散体本身,弥散体与细胞的接触区,因此不能用于硬化动力学的定性或定量分析。考虑到试管的弹性是获得可靠信息的必要条件。已经确定,在粘合剂存在收缩或明显膨胀的情况下,用共振方法研究结构形成应在塑料试管中进行。不管缩水率如何,使用试管都必须考虑其弹性特性。最好不是根据动弹性模量本身的动力学,而是根据动弹性模量的变化率来客观地区分结构的形成阶段。对数阻尼衰减的时间依赖性也是混凝土结构的一个重要特征。所进行的研究使人们能够获得具有必要性能特征的血清石膏复合材料,并利用它们制造更加美观、耐用和可靠的建筑材料、围墙产品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
FEATURES OF QUANTITATIVE MEASUREMENTS OF THE DYNAMIC MODULE OF ELASTICITY OF BINDERS IN OPTIMIZATION OF PRODUCTION TECHNOLOGY SEROGYPSUM COMPOSITE
The paper considers the issues of studying the structure formation of binders during hardening to determine the optimal moments of mechanical action on gypsum concrete specimens, which makes it possible to optimize the technology of their impregnation with sulfur melt. The time dependence of the elastic modulus of a hardening, binder is its important physicochemical characteristic, since it is used to objectively identify the stages of structure formation, to simulate the processes occurring at each of the stages. It is noted that the method of acoustic resonance of bending vibrations, in the case of hardening binders, needs correction with respect to the measurement technique and interpretation of the results obtained. The kinetics of the resonance frequency of a sample consisting of a rigid cell and a dispersion poured into it is a function of the elastic properties of the cell, the dispersion itself, the contact zone of the dispersion with cell and therefore cannot be used for either qualitative or quantitative analysis of the kinetics of hardening. Taking into account the elasticity of cuvette is necessary to obtain reliable information. It has been established that in the presence of shrinkage or significant expansion of the binder, the study of structure formation by the resonance method should be carried out in plastic cuvettes. Regardless of shrinkage, the use of a cuvette requires compulsory consideration of its elastic properties. It is advisable to objectively distinguish the stages of structure formation on the basis of the kinetics of not the dynamic modulus of elasticity itself, but the rate of its change. The time dependence of the logarithmic damping decrement is also an important characteristic of the concrete structure. The studies carried out make it possible to obtain serogypsum composites with the necessary performance characteristics and to manufacture elements of architectural décor, wall fencing products of increased aesthetics, durability and reliability from them.
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