Development of Dry Sand-Lime New Multicomponent Mortars into the Historical Cultural Monuments Applied on Local Raw Basis

Detailed Examination ◽

Technical Condition ◽

Rehabilitation Work ◽

Complex Development ◽

Dry Sand ◽

Basic Characteristics ◽

Cultural Constructions ◽

Cultural Monuments ◽

The visual and instrumental research of the technical condition of historical cultural constructions and their stone additions, documentation of their existing damages, as well as complex development and implementation of further collapse preventing measures and construction durability ensuring measures are presented. Application of processed sand-lime complex mortars based on local raw is offered for blockage of composition cracks during the rehabilitation work taking into consideration some averaged indices of Mape Antique I, Italian “Mapey” firm, similar injection mortar orientation basic characteristics (physical and mechanical characteristics, leakage, viability) and complete laboratory detailed examination results of the component mineralogical and physical and mechanical characteristics of the substances originally used in the construction. The data on local based raw processed sand-lime construction complex mortars (blockage mortar, injection mortar) physical and mechanical characteristics, thermographic dilatometric properties dependence on composition and fastening conditions of mortars are presented

Conceptual Approaches to Solving the Issue of Reinforcing the Rock - Cut Structures of Geghard Monastery Complex

Journal of Architectural and Engineering Research ◽

10.54338/27382656-2021.1-9 ◽

2021 ◽

Vol 1 (2) ◽

pp. 3-9

Author(s):

† Artavazd Avetik Arzumanyan ◽

Avetik Artavazd Arzumanyan ◽

Hasmik Hamle Qaramyan ◽

Nelli Gagik Muradyan

Keyword(s):

Technical Condition ◽

Laboratory Studies ◽

Underground Structures ◽

Rock Samples ◽

Sandstone Rock ◽

Comprehensive Development ◽

Strength And Deformation ◽

The article presents a visual and instrumental research of the technical condition of the main rock-cut structures and their masonry additions, the documentation of their damages (cracks, crevices, destructions and erosions) and deformations, thorough complete laboratory studies of rock samples and their physical and mechanical characteristics, conceptual approaches to preventive and reinforcing measures necessary for the further safe survival of structures, as well as the comprehensive development and implementation of measures to prevent further damages (elimination of causes) and ensure the long-term existence of structures. Based on the analyses carried out, it is recommended to use a ready-made dry mixture mortar of the “Mapegrout'' brand produced by the Italian company “Mapei” to fill cracks if necessary. It is available in the market of the country and is successfully used in the reconstruction of tunnels and other underground structures. The issues of compatibility of reinforcing materials with sandstone rock are also considered on the basis of some averaged data of the main decisive physical and mechanical characteristics of the strength and deformation of sandstone.

PEMANFAATAN ROTAN NON KOMERSIAL SEBAGAI BAHAN BAKU MEBEL DITINJAU DARI SIFAT FISIS DAN MEKANIS

Jurnal Riset Industri Hasil Hutan ◽

10.24111/jrihh.v3i1.1181 ◽

2011 ◽

Vol 3 (1) ◽

pp. 1

Author(s):

Suroto Suroto

Keyword(s):

Manufacturing Industry ◽

Research Result ◽

Raw Material ◽

Segment Length ◽

Central Kalimantan ◽

Substitute Material ◽

Basic Characteristics ◽

Craft Industry ◽

Rattan in good quality is curently difficult to obtain and it price is quite expensive. So, it is needed to utilize non commercial rattan as substitute material. By identification of basic characteristics , such as phisical, mechanical, chemical and anatomy structure, every species of non commercial rattan can be used appropriately. The objectives of this research is to optimize utilization non commercial rattan as subtitute material and develop rattan manufacturing industry especially by identivication of the physical and mechanical characteristics. Five (5) rattan species studied here are marau (Calamus mettanensis Becc), toho (Calamus spp), galang (Daemonorops verticilaris Griff Mart), hijau (Calamus spp. and simpurut (Calamus panajuga Becc) whic derived from central Kalimantan. The research result based on physical characteristic rang for diameter is between 6,2 – 27,2 mm, inter-segment length 10 – 28 cm, moisture content 12,50 – 16,48 % and density 1,03 – 1,61 gr/cm3. While mechanical characteristics range for modulus of elasticity is between 364,03 – 1934,29 kg/cm2, compression strenth 127,55 – 441,04 kg/cm2 and tensile strength 197,34 – 394,20 kg/cm2. Those rattan species can be optimized as craft industry raw material especialy for furniture and rattan matting.Keywords: rattans, physical, mechanical, craft.

Problem of the degradation criteria for transportation construction elements

E3S Web of Conferences ◽

10.1051/e3sconf/202016403014 ◽

2020 ◽

Vol 164 ◽

pp. 03014

Author(s):

Albert Lantukh-Lyashchenko ◽

Artur Onishchenko ◽

Oleksandr Davydenko

Keyword(s):

Life Cycle ◽

Theoretical Basis ◽

Damage Accumulation ◽

Control Parameter ◽

Prediction Models ◽

Technical Condition ◽

Building Structures ◽

Advantages And Disadvantages ◽

The article is devoted to the pressing problem of managing the reliability and durability of transport constructions. Modern scientific approaches to assessing the technical condition of transport facilities based on an analysis of element degradation during the life cycle of operation considered. The article presents the advantages and disadvantages of the most common prediction models of the technical condition of building structures. Each model uses a characteristic criterion for degradation of building structures: load and unload cycles, rejection number of chlorides, intensity coefficient, a geometric parameter (parameters) of the crack in the material, reliability, etc. The problem of choosing the control parameter of the lifecycle model of the bridge elements is analyzed. The theoretical basis for the Markov phenomenological model of damage accumulation and the model of degradation based on the physical and mechanical characteristics of the material formulated. Depending on the stage of the life cycle, it is proposed to select the type of prediction model.

BENCH DESIGN AND STUDY OF PHYSICAL AND MECHANICAL CHARACTERISTICS OF A TEAT CUP LINER WITH ANTIBACTERIAL FILLER

10.26897/2687-1149-2020-3-22-26 ◽

2020 ◽

pp. 22-26

Author(s):

YURY G. IVANOV ◽

◽

YELENA V. MASHOSHINA ◽

LYUDMILA N. VERLIKOVA ◽

DARIA G. GELETIY ◽

...

Keyword(s):

Discharge-pulse Geotechnical Electro Discharge Technology of Bases Strengthening

Stroitel nye Materialy ◽

10.31659/0585-430x-2020-787-12-63-65 ◽

2020 ◽

Vol 787 (12) ◽

pp. 63-65

Author(s):

N.S. Sokolov

Keyword(s):

Bearing Capacity ◽

Discharge Pulse ◽

Zero Values ◽

Traditional Technologies ◽

Negative Friction ◽

Geotechnical Problems ◽

The problem of increasing the bearing capacity of the base is an relevant problem in modern geotechnical construction. When significant loads are transmitted to the base, the use of traditional technologies is not always justified. Often there is an urgent need to use non-standard ways to strengthen the bases. In many cases, the geotechnical situation is aggravated by the presence of weak underlying layers with unstable physical and mechanical characteristics in engineering-geological sections. When strengthening such bases with the help of traditional piles, the latter can get negative friction, which significantly reduces their bearing capacity on the ground, sometimes reaching zero values. This may lead to additional precipitations of the objects being constructed and constructed in the zone of geotechnical influence. The use of ERT piles in most cases successfully solves many complex geotechnical problems.

EFFECT OF LIMESTONE SIZE PARTICLES ON IMPROVING EGGSHELL AND BONE PHYSICAL AND MECHANICAL CHARACTERISTICS AT THE PEAK OF EGG PRODUCTION IN GOLDEN MONTAZAH CHICKEN

Misr Journal of Agricultural Engineering ◽

10.21608/mjae.2019.94903 ◽

2019 ◽

Vol 36 (4) ◽

pp. 1303-1318

Author(s):

S. E. Mosa ◽

A. R. Khosht

Keyword(s):

Egg Production ◽

Promising hybrid fabrics based on carbon and aramid fibers as a reinforcing filler for polymer composites

Voprosy Materialovedeniya ◽

10.22349/1994-6716-2019-98-2-86-95 ◽

2019 ◽

pp. 86-95 ◽

Cited By ~ 1

Author(s):

G. F. Zhelezina ◽

V. G. Bova ◽

S. I. Voinov ◽

A. Ch. Kan

Keyword(s):

Composite Material ◽

Polymer Composites ◽

Carbon Fibers ◽

High Strength ◽

High Modulus ◽

Hybrid Composite Material ◽

Hybrid Fabric ◽

Reinforcing Filler ◽

The paper considers possibilities of using a hybrid fabric made of high-modulus carbon yarn brand ZhGV and high-strength aramid yarns brand Rusar-NT for polymer composites reinforcement. The results of studies of the physical and mechanical characteristics of hybrid composite material and values of the implementation of the strength and elasticity carbon fibers and aramid module for composite material are presented.

The Composite Reinforcement of LLC «SK»

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.752-753.749 ◽

2015 ◽

Vol 752-753 ◽

pp. 749-757

Author(s):

Svetlana Kiski ◽

Zhanna Teplova ◽

Alexey Sokolov

Keyword(s):

Construction Industry ◽

Russian Federation ◽

Analysis And Synthesis ◽

The Russian Federation ◽

Under Construction ◽

Available Information ◽

Main Producer ◽

Physical And Mechanical Characteristics ◽

Composite Reinforcements

The review of the main physical and mechanical characteristics of steel and nonmetallic composite reinforcements is presented in the article. Also there are complex studying, analysis and synthesis of available information. Much attention is paid to recommendations for designing building constructions of different functions with nonmetallic composite reinforcements. Scopes of nonmetallic composite reinforcements in the construction industry in Russia and abroad are considered.Information about main producer and the official distributor of composite reinforcements is provided in the article. This company is the official distributor in the Northwest of the Russian Federation. Their production is successfully used on many objects under construction in Russia. Materials of the article are based on the real photographic materials provided by personal archive of the company.