scholarly journals Experimental Study on Performance of Foamed Magnesium Slag Cement

2020 ◽  
Vol 198 ◽  
pp. 01008
Author(s):  
Chen Guo ◽  
Jianxun Ma ◽  
Yuheng Dai ◽  
Rui Niu
Keyword(s):  
Experimental Study ◽  
Chemical Composition ◽  
Portland Cement ◽  
Physical Properties ◽  
Industrial Waste ◽  
Foaming Agent ◽  
Cement Ratio ◽  
Mechanical And Physical Properties ◽  
New Type ◽  
Potential Activity

Magnesium slag is an industrial waste residue produced in magnesium smelting. Its chemical composition is similar to Portland cement and has potential activity. After the magnesium slag is foamed, it can be made into a new type of lightweight material, and its forming, mechanical and physical properties were closely related to dry material formula, water-cement ratio and foaming agent amount. In this paper, experiments were carried out to find the ingredients and processes suitable for the forming of foamed magnesium slag, making it have certain mechanical and physical properties at the same time.

scholarly journals Experimental Study on Carbonization of Magnesium Slag Cement

2020 ◽  
Vol 198 ◽  
pp. 01022
Author(s):  
Yuheng Dai ◽  
Jianxun Ma ◽  
Chen Guo ◽  
Xin Xu
Keyword(s):  
Experimental Study ◽  
Chemical Composition ◽  
Physical Properties ◽  
Industrial Waste ◽  
Slag Cement ◽  
Similar Chemical Composition ◽  
Similar Chemical ◽  
Mechanical And Physical Properties

Magnesium slag is a kind of industrial waste with the similar chemical composition to silicate cements, which is of hydration activity to some extent. However, the hydration activity of magnesium slag is much lower than that of traditional silicate cements. Through the method of carbonization, this experiment enhanced the hydration activity of magnesium slag, so that the strength of magnesium slag products can meet the requirements of structures together with certain mechanical and physical properties as well.

Research on the Fracture Splitting Technology of Connecting Rod Based on Car TSI Engine

2013 ◽  
Vol 791-793 ◽  
pp. 631-634 ◽  
Author(s):  
Tian Ming Liu ◽  
Wen Xu ◽  
Wei Dong Feng
Keyword(s):  
Chemical Composition ◽  
Theoretical Analysis ◽  
Physical Properties ◽  
Comprehensive Analysis ◽  
Process Parameter ◽  
Connecting Rod ◽  
Mechanical And Physical Properties ◽  
Type Fracture ◽  
Fracture Splitting ◽  
New Type

The research of the expanding broken technology of engine connecting rod (also known as the fracture splitting technology) is based on some known factors which effect on connecting rod splitting to make comprehensive analysis on 36MnVS4, the material of connecting rod which is suitable for the fracture splitting technology, it analyses the effect of each chemical composition in steel on mechanical and physical properties, for material steel of new type fracture splitting connecting rod , and makes a theoretical analysis on the fracture splitting technology of the engine connecting rod. Through the analysis and research, a new method to research the fracture splitting of connecting rod is determined, as well as gets some rules to affect process parameter.

EXPLORATORY STUDY ON THE MECHANICAL AND PHYSICAL PROPERTIES OF CONCRETE CONTAINING SULFUR

2015 ◽  
Vol 77 (32) ◽  
Author(s):  
David Yeoh ◽  
Koh Heng Boon ◽  
Norwati Jamaluddin
Keyword(s):  
Portland Cement ◽  
Physical Properties ◽  
Ordinary Portland Cement ◽  
Cement Content ◽  
Drying Shrinkage ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Complete Replacement ◽  
Mechanical And Physical Properties ◽  
Ordinary Portland Cement Concrete

This research is an exploratory experiment into sulfur concrete used not as a complete replacement of cement but as an additional material in percentage of the cement content. The aim of this research was to explore the possible appreciation of mechanical and physical properties of concrete containing sulfur with percentages of 1%, 5% and 10% of the cement content. The sulfur used here was not heat-activated, hence the binding effect in sulfur was absent. The experimental results revealed that concrete containing sulfur did not perform better in their strength properties, both compressive strength and flexural strength. The physical properties such as water penetration and water absorption for concrete containing sulfur also showed poor performance in comparison to ordinary Portland cement concrete. Such phenomena are very likely due to the sulfur not being activated by heat. Carbonation test did not show good results as a longer term of testing is required. Drying shrinkage property was found to be encouraging in that concrete containing 10% sulfur had quite significant reduction in drying shrinkage as opposed to ordinary Portland cement concrete. 

Experimental study on concrete with rice husk ash under sulphuric ACID solutions

2018 ◽  
Vol 7 (4.5) ◽  
pp. 522
Author(s):  
R. Ramya Swetha ◽  
Dr. G.Venkata Ramana ◽  
K. Anusha Hadassa
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Portland Cement ◽  
Sulphuric Acid ◽  
Rice Husk ◽  
Industrial Waste ◽  
Ordinary Portland Cement ◽  
Rice Husk Ash ◽  
Acid Solutions ◽  
Iron And Calcium

This investigation shows the results on aggressive sulphuric acid on the concrete combined with rice husk ash (RH) when partially replaced for ordinary Portland cement. The husk ash, which mainly contains aluminum ion, silica, iron and calcium oxides, is an industrial waste and poses disposal problems. In this study, the effect of various concentrations (1%, 3%, 5%) of sulphuric acid (H2SO4) on Concrete replaced with various percentages (0%,5%,10%,15% and 20% by weight of cement) of RH is evaluated in-terms of residual compressive strength. The loss of compressive strengths of concrete immersed in various H2SO4 solutions for 7 days 28 days and 60 days indicates that at upto 10% replacement increase in strength was observed after which strengths were decreasing. This increase in strength is attributed to pozzolanic activity of RH.  

Controlling Physical Properties of Cementitious Matrixes by Nanomaterials

2010 ◽  
Vol 123-125 ◽  
pp. 639-642 ◽  
Author(s):  
Andrzej Cwirzen
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Flexural Strength ◽  
Portland Cement ◽  
Physical Properties ◽  
Frost Resistance ◽  
Autogenous Shrinkage ◽  
Carbon Nanofibres ◽  
Mechanical And Physical Properties ◽  
New Generation

The majority of concrete used nowadays is based on matrixes formed by hydrating Portland cement. Latest developments in nanosciences introduced a new generation of nano-sized materials possessing often remarkable mechanical and physical properties. These materials can be also used to improve or alter the characteristics of the binder matrixes based on Portland cement. The results showed that mechanical properties such as compressive and flexural strength can be increased by up to 50% by addition of for example 0.23wt% of carbon nanotubes. Carbon nanotubes and carbon nanofibres and/or nanosilica appeared to improve also the frost resistance. Other properties, such as autogenous shrinkage decreased significantly after addition of carbon nanofibres. Nanosilica enabled an immense densification of the hydrated binder matrix, which in turn improved for instance the durability and mechanical properties.

Experimental study on mechanical and physical properties of mini-tuber

2018 ◽  
Author(s):  
Wenpeng Ma ◽  
Decheng Wang ◽  
Bingnan Ye ◽  
Yalei Wu ◽  
Yan Li
Keyword(s):  
Experimental Study ◽  
Physical Properties ◽  
Mechanical And Physical Properties

Extraction and characterization of palm fibers and their use to produce wool- and polyester-blended nonwovens

2019 ◽  
pp. 152808371987700 ◽  
Author(s):  
Laila Sajid ◽  
Oussama Azmami ◽  
Zakia El ahmadi ◽  
Abbès Benayada ◽  
Said Gmouh
Keyword(s):  
Thermal Conductivity ◽  
Tensile Strength ◽  
Thermal Properties ◽  
Chemical Composition ◽  
Physical Properties ◽  
Structural Properties ◽  
Surface Density ◽  
Air Permeability ◽  
Mechanical And Physical Properties

The aim of this work is the production of new nonwovens materials based on wool, polyester and palm fibers ( Washingtonia). The extraction of palm fibers was achieved by the combination of alkaline and bleaching treatments. Chemical composition, mechanical and physical properties of the extracted fibers were first determined. Then, two types of blended nonwovens based on Palm/Wool (P/W) and Palm/Polyester (P/PES) mixtures were produced using the needling technique. The physical and structural properties of produced nonwovens were studied such as surface density, tensile strength, porosity and thermal properties. The results showed that the porosity lies between 83.81% and 86.93% for (P/W) mixtures and between 78.01% and 86.93% for (P/PES) mixtures. The air permeability was found to be between 61.56 m3.m−2.min−1 and 129.01 m3.m−2.min−1 for P/W blend nonwovens and between 22.75 m3.m−2.min−1 and 129.01 m3.m−2.min−1 for P/PES blend ones. The thermal conductivity varies between 36.45 mW/m.K and 43.88 mW/m.K for P/W nonwovens and between 36.45 mW/m.K and 47.70 mW/m.K for P/PES nonwovens. Moreover, the tensile strength of blended nonwovens is found to be higher than that of non-blended ones.

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