A new method of enhancing cement-aggregate interfaces II. Mechanical properties and sulphate attack resistances of mortars

1992 ◽  
Vol 22 (5) ◽  
pp. 769-773 ◽  
Author(s):  
Shen Yang ◽  
Xu Zhongzi ◽  
Xie Ping ◽  
Tang Mingshu
Keyword(s):  
Mechanical Properties ◽  
New Method ◽  
Sulphate Attack

Fixed-angle rotary shear as a new method for tailoring electro-mechanical properties of templated graphene–polymer composites

2014 ◽  
Vol 100 ◽  
pp. 70-75 ◽  
Author(s):  
Nicholas Heeder ◽  
Abayomi Yussuf ◽  
Indrani Chakraborty ◽  
Michael P. Godfrin ◽  
Robert Hurt ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polymer Composites ◽  
New Method ◽  
Fixed Angle ◽  
Rotary Shear

scholarly journals Physical-Mechanical Properties of Cupola Slag Cement Paste

2021 ◽  
Vol 11 (15) ◽  
pp. 7029
Author(s):  
Carlos Thomas ◽  
José Sainz-Aja ◽  
Israel Sosa ◽  
Jesús Setién ◽  
Juan A. Polanco ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Circular Economy ◽  
Setting Time ◽  
Casting Process ◽  
Industrial Sector ◽  
Sulphate Attack ◽  
Experimental Campaign ◽  
High Consumption ◽  
Superior Mechanical Properties ◽  
Environmental Savings

The high consumption of natural resources in the industrial sector makes it necessary to implement measures that enable the reuse of the waste generated, seeking to achieve circular economy. This work assesses the viability of an alternative to the use of CEM III B 32.5 R cement in mortars for the internal coating of centrifugally spun cast iron pipes for water piping. The proposal is to reuse the slag generated in the casting process after being finely ground, as an addition mixed with CEM I 52.5 R cement, which is basically Portland clinker. In order to analyse this possibility, an extensive experimental campaign was carried out, including the analysis of the cupola slag (micro-structural and chemical composition, leachates, setting time, vitrification, puzzolanicity and resistance to sulphate) and regarding the mortars (workability and mechanical properties). The experimental programme has shown that the optimum substitution is achieved with a replacement percentage of 20% of the cement, with which similar workability, superior mechanical properties and guaranteed resistance to sulphate attack are obtained. In addition, both economic and environmental savings are achieved by not having to transport or landfill the waste. In addition, the new cement is cheaper than the cement currently used.

scholarly journals Influence of nanocellulose on the hydration process of Portland cement and concrete properties

2020 ◽  
Vol 17 (5) ◽  
pp. 155-160
Author(s):  
V. I. Khirkhasova ◽  
Keyword(s):  
Mechanical Properties ◽  
Portland Cement ◽  
Physical And Mechanical Properties ◽  
Cement Composite ◽  
High Density ◽  
Strength Characteristics ◽  
New Method ◽  
Concrete Properties ◽  
Hardening Process ◽  
Study Results

The paper deals with modification of cement composite and concrete with nanocellulose in low and high density. The author presents the study results of the influence of nanocellulose on the cement composite hardening process, as well as the physical and mechanical properties of heavy concrete. The influence of the used additive on the rheological and strength characteristics of concrete is revealed. A new method is proposed to improve the material performance.

scholarly journals New Method for Diagnostic of Heat Engineering and Mechanical Properties of Cellular Concrete

2019 ◽  
Vol 9 (1) ◽  
pp. 6885-6887
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Information Technology ◽  
Optical Method ◽  
New Method ◽  
Modern Approach ◽  
Heat Engineering ◽  
Aerated Concrete ◽  
Pore Arrangement ◽  
Cellular Concrete

The article presents the results of studies assessing the structure of cellular concrete using a photo-optical method based on the use of a modern approach from the standpoint of information technology. Based on the photo-optical method, a reverse formulation of the problem is also possible: on the basis of a given percentage of porosity of the material, obtain the most optimal pore arrangement (type of packaging) that meets the specified strength and thermal conductivity of aerated concrete. Having a specific type of image of aerated concrete obtained as a result of modeling, otherwise, a specific type of packing of pores of certain sizes that meets the required (specified) characteristics, then, we can set the technological task of obtaining it.

Refractory metal alloying: A new method for improving mechanical properties of tungsten heavy alloys

2017 ◽  
Vol 709 ◽  
pp. 609-619 ◽  
Author(s):  
U. Ravi Kiran ◽  
A. Panchal ◽  
M. Prem Kumar ◽  
M. Sankaranarayana ◽  
G.V.S. Nageswara Rao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Refractory Metal ◽  
New Method ◽  
Heavy Alloys ◽  
Tungsten Heavy Alloys

A new method for predicting advanced yield criteria input parameters from mechanical properties

2017 ◽  
Vol 248 ◽  
pp. 161-177 ◽  
Author(s):  
Michael Abspoel ◽  
Marc E. Scholting ◽  
Marcel Lansbergen ◽  
Yuguo An ◽  
Henk Vegter
Keyword(s):  
Mechanical Properties ◽  
New Method ◽  
Yield Criteria ◽  
Input Parameters

Design and Simulation of a Kind of Ultrasonic Deicing Acoustic System

2012 ◽  
Vol 203 ◽  
pp. 500-503 ◽  
Author(s):  
Yun Dian Zhang ◽  
Long Shen Han
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Finite Element Simulation ◽  
Computer Software ◽  
New Method ◽  
Acoustic System ◽  
Element Simulation

Ultrasonic deicing is a new method of deicing. This paper analyzed and designed a kind of ultrasonic deicing acoustic system, then simulated it with the ANSYS, which is a kind of finite element simulation computer software used to do finite element simulation work. The results indicate that the frequency and mechanical properties of the acoustic system meet the expectant demand.

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