Clinkerless Complex Binder from Refractory Waste and Objects Based on It1

2016 ◽  
Vol 57 (4) ◽  
pp. 407-409
Author(s):  
V. N. Sokov ◽  
S. D. Sokova ◽  
V. V. Sokov
Keyword(s):  
Complex Binder

Influence of Mineralogical Origin of Limestone Powder on the Performance of Complex Binder Material

2011 ◽  
Vol 477 ◽  
pp. 136-141
Author(s):  
Qin Wang ◽  
Jia Long Chen ◽  
Chang Cheng Zhang ◽  
Wei Niu
Keyword(s):  
Crystal Structure ◽  
Clay Mineral ◽  
Lamellar Structure ◽  
Perfect Crystal ◽  
Limestone Powder ◽  
Elemental Component ◽  
Binder Material ◽  
Complex Binder ◽  
Main Components ◽  
Perfect Crystal Structure

The effect of mineralogical origin, elemental component, crystal structure of three types of limestone powder on the fluidity of cement-limestone paste and mortar was investigated. The results show that the limestone powder originated from the mine of limestone and river pebble have better water-reducing effect, which is closely correlated with the main components of Calcite and Dolomite. These two mineral have relatively regular, orderly and perfect crystal structure with few defects and unfilled pores which are liable to adsorb more water and water-reducing agents. On the contrary, the limestone powder derived from the mine of sandstone has nearly no water-reducing effect which is ascribed to the large amount of clay mineral which exhibit lamellar structure leading to the large quantity of consumption of water.

USE OF ACRYLIC COPOLYMER ADDITIVE SOIL STABILIZATION PLUS FOR PREPARATION OF MIXTURES MADE BY COLD RESYCLING TECHNOLOGY AND CRUSHED STONE-SAND MIXTURES IN PAVEMENT FOUNDATION LAYERS

2021 ◽  
Vol 2021 (24) ◽  
pp. 48-59
Author(s):  
Anatolii Mudrychenko ◽  
◽  
Ivan Balashov ◽  
Sergey Illyasch ◽  
◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Soil Stabilization ◽  
Crushed Stone ◽  
Technological Parameters ◽  
Acrylic Copolymer ◽  
Sand Mixture ◽  
Recycling Technology ◽  
Complex Binder ◽  
Cold Recycling ◽  
Pavement Foundation

ntroduction. Rehabilitation of public roads network requires a comprehensive recovery with strengthening of the bearing capacity of the pavement foundation. Rehabilitation of the foundation bearing capacity performed by arranging layers of road material made by cold recycling technology (hereinafter — CRRM) in accordance with [4] or by arranging a layer of crushed stone — sand mixture reinforced with cement or complex binder (hereinafter — CSSM 20) according to [13]. Purpose. The purpose of the work is to study the feasibility of using acrylic additives for the preparation of mixtures made by cold recycling technology and crushed stone-sand mixtures treated with cement in the layers of pavement foundation. Materials and methods. Experimental comparative tests of CRRM and CSSM 20 with different content of complex binder were performed. Results. Feasibility of acrylic additives use has been established (hereinafter — the additive) for the preparation of CRRM and CSSM 20 in the pavement foundation layers. Recommendations on technological parameters of preparation, transportation, laying and compaction of mentioned mixtures are given. Conclusions. Performed researches have shown that according to physical and mechanical indicators CRRM and CSSM20 meet the requirements of the current normative documents of Ukraine. The advantages of use are noted.

scholarly journals THE EFFECT OF SODIUM SILICATE AND ITS SOLUTION ON THE PROPERTIES OF REFRACTORY COMPLEX BINDER/NATRIO SILIKATO KIEKIO IR JO TIRPALO TANKIO ĮTAKA KOMPLEKSINIO KAITRAI ATSPARAUS RIŠIKLIO SAVYBĖMS

1999 ◽  
Vol 5 (3) ◽  
pp. 211-216
Author(s):  
Valentin Antonovič ◽  
Stasys Goberis ◽  
Romualdas Mačiulaitis
Keyword(s):  
Sodium Silicate ◽  
Liquid Glass ◽  
Solid Phase ◽  
Physical And Mechanical Properties ◽  
Alumina Cement ◽  
Hardening Mechanism ◽  
Temperature Range ◽  
Calcium Hydrosilicates ◽  
Higher Temperature ◽  
Complex Binder

In order to improve thermal and mechanical characteristics of a traditional binder with liquid glass a complex binder consisting of liquid glass, its hardener and alumina cement (“Gorkal 70” containing not less than 70 per cent of AI2O3) was tested. Sodium silicate and its solution effect on physical and mechanical properties of a new refractory complex binder (Table 1, Fig 2) were investigated. The results obtained show that compressive strength of binding compound with high quantity of sodium silicate (N3) is the lowest after it had been cured, dried and fired at 300–600°C (Fig 3). It was also found that the strength of a complex binder with small quantity of sodium silicate (N1) in the temperature range of 20–600°C is 2–3 times as high as that of a traditional binder with dispersed fire-clay. The study in the formation of the structure of a complex binders dilatometric tests have also been made. After initial heating at 80–500°C the compositions contracted (Fig 4) due to dehidratation. At the temperature range of 580–750°C the contraction of compositions continue due to reactions at the solid phase. The hypothesis of the hardening mechanism in the complex binder was proposed. Liquid glass tends to restrain the hydration of the alumina cement though hardeners and sodium silicate interaction result in the intense formation of sodium calcium hydrosilicates. Therefore, a complex binder contains less sodium silicate than a traditional one while being used at higher temperature.

scholarly journals EFFICIENCY OF REINFORCEMENT OF TECHNOLOGICAL SOIL BY MINERAL MODIFIERS

2019 ◽  
Vol 4 (7) ◽  
pp. 14-23
Author(s):  
Т. Дмитриева ◽  
T. Dmitrieva ◽  
Н. Куцына ◽  
N. Kucyna ◽  
А. Безродных ◽  
...  
Keyword(s):  
Raw Materials ◽  
Road Construction ◽  
Soil Reinforcement ◽  
Production Costs ◽  
Concrete Mixture ◽  
The Road ◽  
Physicomechanical Characteristics ◽  
Advantages And Disadvantages ◽  
Complex Binder ◽  
Technogenic Raw Materials

The paper discusses the main aspects of soil reinforcement in road construction by adding a binder component to them. The use of this technology allows to solve the problem of high-quality raw materials shortage while improving the physicomechanical characteristics or keeping them at the same level, as well as to increase labor productivity and reduce production costs. The technogenic raw materials for the production of soil concrete were studied, the main physicomechanical characteristics and requirements that must be taken into account when selecting the composition of the soil concrete mixture were analyzed. The paper compares the physicomechanical characteristics of the road composite, reveals the advantages and disadvantages of introducing binder components of various types: cement, cement with modifier and a complex binder. It has been established that the introduction of a complex binder or cement with modifier contributes to the improvement of the physicomechanical characteristics while reducing the consumption of cement in the composition of the soil-concrete mixture compared to traditional soil-concrete with cement.

Influence of the Binder Amount on the Properties of the Non-Sintering Ti(C,N)-Si3N4-SiC Composite Refractories

2013 ◽  
Vol 833 ◽  
pp. 221-224 ◽  
Author(s):  
Bo Tan ◽  
Kai Chen ◽  
Zhao Hui Huang ◽  
Ming Hao Fang ◽  
Yan Gai Liu ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Phenolic Resin ◽  
Raw Materials ◽  
Silicon Powder ◽  
Volume Shrinkage ◽  
Natural Quartz ◽  
Complex Binder ◽  
Degradation Of Properties ◽  
Silicon Carbide Particles ◽  
Carbide Particles

The non-sintering Ti (C,N)-Si3N4-SiC composite refractories were prepared using natural quartz, rutile and silicon carbide particles/powders as the raw materials, phenolic resin and urotropin as a complex binder and silicon powder as the additive. The influence of the binder amount on the density, flexural strength, volume shrinkage and the microstructure of the non-sintering Ti (C,N)-Si3N4-SiC composite refractories was studied in detail. The results showed that the amount of binder has significant effects on the properties of the non-sintering Ti (C,N)-Si3N4-SiC composite refractories. The bulk density decreased and the apparent porosity increased as the amount of binder increased, and the flexural strength increased and then decreased as the amount of binder increased, and the volume shrinkage increased with the increase of the amount of binder. The binder is propitious to the properties of the non-sintering Ti (C,N)-Si3N4-SiC composite refractories, but excessive binder will result in the degradation of properties of the as-fabricated composite refractories, the optimum amount of complex adhesive is 15%.

THE EFFECT OF SODIUM SILICATE AND ITS SOLUTION ON THE PROPERTIES OF REFRACTORY COMPLEX BINDER

Statyba ◽  
1999 ◽  
Vol 5 (3) ◽  
pp. 211-216 ◽  
Author(s):  
V. Antonovič ◽  
S. Goberis ◽  
R. Mačiulaitis
Keyword(s):  
Sodium Silicate ◽  
Complex Binder

PROSPECTS FOR THE APPLICATION OF COPPER MELTING SLAG IN ROAD CONSTRUCTION

2021 ◽  
Vol 98 (6) ◽  
pp. 90-97
Author(s):  
N.I. SHESTAKOV ◽  
◽  
A.V. KORSHUNOV ◽  
S.V. PUTILIN ◽  
◽  
...  
Keyword(s):  
Physical And Mechanical Properties ◽  
Road Construction ◽  
Copper Smelting ◽  
Standard Samples ◽  
X Ray ◽  
Aluminum Hydroxides ◽  
Mixture Decomposition ◽  
Complex Binder ◽  
Chemical And Phase Compositions ◽  
Melting Slag

The article discusses the option of strengthening the soils of the roadbed of highways with complex binders based on granular slag of copper smelting production and air lime. The characteristics of the investigated slag, photomicrographs of its surface, as well as the chemical and phase compositions are presented. A detailed description of the X-ray diffractogram of the studied slag with the processing of the obtained reflections using the ICDD PDF-2 database is presented. Calculations of hydrolytic equilibria were carried out using the main phases found from the data of X-ray phase analysis. It was found by the calculation method that at pH = 11-12 in the lime-slag mixture decomposition of iron silicates and aluminosilicates occurs with the formation of gels of iron and aluminum hydroxides, as well as amorphous silica. On the basis of the obtained complex binder, standard samples of strengthened soil based on loam were made and tested to determine the physical and mechanical properties. The results of the experiments carried out create an opportunity for obtaining hardened soils based on a complex mineral binder with a compressive strength of up to 2.2 MPa.

Influence of Fly Ash on Microstructure of Complex Binder Pastes

2015 ◽  
Vol 1088 ◽  
pp. 608-612 ◽  
Author(s):  
Xiang Li ◽  
Jian Jun Yan ◽  
Hua Quan Yang
Keyword(s):  
Fly Ash ◽  
Cement Content ◽  
Cementitious Materials ◽  
Complex Binder

The microstructure of complex binder pastes was investigated by means of XRD and SEM-EDS. The results show that adding fly ash means decline of cement content in cementitious materials, which leads to the decrease of Ca (OH)2 content in complex binder pastes. The Ca (OH)2 crystal still exists in the complex binder pastes at the age of 360 days. By replacing part of cement with fly ash, the early microstructure of complex binder pastes becomes loosened. With the extension of curing ages, a great quantity of low CaO/SiO2 ratio of C-S-H gel is generated, which makes complex binder pastes compact gradually.

scholarly journals Effect of Fibre and Microsilica Incorporation on High Temperature Resistance of Cementitious Complex Binder

1970 ◽  
Vol 17 (1) ◽  
pp. 69-72
Author(s):  
Regina KALPOKAITĖ-DIČKUVIENĖ ◽  
Kristina BRINKIENĖ ◽  
Jūratė ČĖSNIENĖ ◽  
Algis MAKŠTYS
Keyword(s):  
High Temperature ◽  
Thermal Treatment ◽  
Mechanical Strength ◽  
Firing Temperature ◽  
Experimental Results ◽  
Thermal Shrinkage ◽  
Crushing Strength ◽  
Temperature Resistance ◽  
Cold Crushing Strength ◽  
Complex Binder

Complex binder reinforced with microfibre produced from waste catalyst was investigated. Influence of 1, 3 and 5 % of fibre as well as 5 % of microsilica on the mechanical strength of complex binder after thermal treatment at 600, 800 and 1000 °C temperature was analyzed. According to the experimental results reinforcement with 1 % of fibre had advantage on mechanical strength of complex binder up to 800 °C, meanwhile 5 % of fibre resulted in the lowest values of strength in all firing temperature range. The strength of dry samples was improved with microsilica incorporation. But above 800 °C temperature cold crushing strength as well as thermal shrinkage of binder reinforced with fibre and microsilica was lower in comparison with ordinary complex binder at 1000 °C.http://dx.doi.org/10.5755/j01.ms.17.1.253

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