Justification of the Water-Cement Ratio Decision for Cement Mixtures Using CBPB Wastes

Walery Jezierski , N. Kuznetsova , A. Seleznev

Abstract

An unconventional approach to the design of cement mixtures with the addition of cement bonded particle board (CBPB) production waste is presented, which is characterized by high water consumption. For various compositions of fine-grained concrete prepared in accordance with the simplex-lattice design of the experiment, compressive strength and bending, as well as density of the samples, depending on the mixture factors, were researched. The fractions of CBPB wastes, water and sand at constant cement consumption were chosen as the influencing factors. For practical purposes, related to the design of cement composite compositions with the addition of CBPB wastes and with the determination of optimal values of the selected factors, mathematical models have been constructed on the basis of laboratory experiment data and with their help, the optimal ratios of components in the mixture have been determined. It was found that the content of water for the mixture mixing in the mixture has a significant effect on the strength characteristics of composites: increase of the strength of materials with a decrease in the water-cement ratio is a characteristic for compositions with the minimum amount of CBPB waste; increasing the content of the CBPB waste in the mixture the increase of the water-cement ratio leads to gain in strength. Optimal ratios of the mixture components providing maximum utilization of CBPB waste without loss of strength of composites are given.
Author Walery Jezierski (FCEE / DSEEC)
Walery Jezierski,,
- Department of Spatial Economy and Energy-Efficient Construction
, N. Kuznetsova
N. Kuznetsova,,
-
, A. Seleznev
A. Seleznev,,
-
Journal seriesMaterials Science Forum, ISSN 1662-9752, [0255-5476], (N/A 20 pkt)
Issue year2019
Vol945
Pages1009-1015
Publication size in sheets0.5
Keywords in EnglishCement Bonded Particle Board Production Waste, Cement Composites, Experiment Planning, Mechanical Properties, Mixture Water Demand, Physical Properties, Waste Utilization, Water-Cement Ratio
ASJC Classification2210 Mechanical Engineering; 2211 Mechanics of Materials; 2500 General Materials Science; 3104 Condensed Matter Physics
DOIDOI:10.4028/www.scientific.net/MSF.945.1009
Internal identifier000045069
Languageen angielski
Score (nominal)20
Score sourcejournalList
ScoreBUT score = 5.0
Ministerial score = 20.0, 12-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.299
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