scholarly journals Experimental justification for sapropel and hemp shives use as thermal insulations in Latvia

2015 ◽  
Vol 1 ◽  
pp. 175 ◽  
Author(s):  
Stanislavs Pleiksnis ◽  
Maris Sinka ◽  
Genadijs Sahmenko
Keyword(s):  
Thermal Insulation ◽  
Raw Materials ◽  
Energy Resources ◽  
Insulation Material ◽  
Renewable Energy Resources ◽  
Renewable Raw Materials ◽  
Fossil Energy ◽  
Thermal Insulation Material ◽  
Experimental Justification ◽  
Thermal Insulations

<p class="R-AbstractKeywords">Fossil energy resources in Latvia are imported from other countries, but at the same time, our country is rich in renewable energy resources and other raw materials, which are used very little. In the study it is proposed to create a thermal insulation material from hemp shives grown in Latvia as a filler material and lake sediment - sapropel as a binding agent. Both of the following materials are organic, renewable and locally available. Laboratory experiments show that ecological and complying with modern requirements thermal insulation material can be obtained from local, renewable raw materials: sapropel and hemp shives.</p>

The Preparation of Red Mud Foam Lightweight Thermal Insulation Material

2014 ◽  
Vol 541-542 ◽  
pp. 104-107
Author(s):  
Long Ma ◽  
Guo Zhong Li
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Thermal Insulation ◽  
Red Mud ◽  
Raw Materials ◽  
Insulation Material ◽  
Test Results ◽  
Sintering Process ◽  
Thermal Insulation Material ◽  
Properties Of Materials

Red mud foam lightweight thermal insulation material was prepared by red mud, fly ash, cement as main raw materials, adding a certain amount of adhesive, through ingredients, mixing, molding, foam, sintering process. The influence of the ratio of red mud and fly ash on the properties of materials was studied and the mechanism of influence was analyzed. The test results show that performances of the samples were best when the ratio of red mud and fly ash is 5:4 and its flexural strength is 0.44MPa, compressive strength is 1.23MPa, density is 481kg/m3.

A Brief Analysis on the Design of Polystyrene Composite Thermal Insulation Material in Terms of Thermal Characteristics

2012 ◽  
Vol 512-515 ◽  
pp. 1535-1542
Author(s):  
Chao Wang ◽  
Zhong Hai Yin ◽  
Xue Jun Chen
Keyword(s):  
Energy Saving ◽  
Thermal Insulation ◽  
Raw Materials ◽  
Thermal Characteristics ◽  
Particulate Composite ◽  
Building Envelope ◽  
Building Energy Efficiency ◽  
Insulation Material ◽  
Thermal Insulation Material ◽  
Building Wall

In the field of architecture, “energy-saving building” has been mentioned as a strategy which is as important as the ones of our population, resources, environment and sustainable development. The design of the building wall materials in the building envelope is the key step of the wall insulation, which can be taken as the key technology in building energy efficiency. Tests, starting from the thermal characteristics of the building envelope and the raw materials, taking heat transfer coefficient as an important parameter, show that the polystyrene particulate composite silicate thermal insulation material can be designed to meet energy-saving requirements.

The External Thermal Insulation Material Made of Technical Hemp

2014 ◽  
Vol 897 ◽  
pp. 315-318
Author(s):  
Šárka Keprdová ◽  
Jiří Bydžovský
Keyword(s):  
Tensile Strength ◽  
Thermal Insulation ◽  
Raw Materials ◽  
Insulation Material ◽  
Hydraulic Lime ◽  
Thermal Insulation Material ◽  
Bulk Weight ◽  
Strength Based ◽  
Basic Characteristics ◽  
Strength In Bending

The paper discusses the possibilities of production of external thermal insulation material from technical hemp bonded mixture of cement, hydraulic lime and secondary raw materials. To verify the applicability of this material as a heat-insulating, it was necessary to test its properties. The basic characteristics are to be determined bulk weight and heat conductivity factor. Additionally was also tested the tensile strength in bending and compressive strength. Based on the measured properties was decided to evaluate the applicability of this material as an additional thermal insulation.

Influences of Emulsion on Water Resistance of Vitrified Micro Bubbles Thermal Insulation Material

2013 ◽  
Vol 662 ◽  
pp. 433-436
Author(s):  
Jiang Zhu ◽  
Guo Zhong Li
Keyword(s):  
Compressive Strength ◽  
Polyvinyl Alcohol ◽  
Stearic Acid ◽  
Thermal Insulation ◽  
Water Resistance ◽  
Insulation Material ◽  
Molding Process ◽  
Thermal Insulation Material ◽  
Improve Water Resistance ◽  
Softening Coefficient

Vitrified micro bubbles thermal insulation material was made of vitrified micro bubbles, cement, fly ash, gypsum and sodium silicate, by molding process. VAE emulsion and stearic acid-polyvinyl alcohol emulsion were added to improve water resistance of the material. Mixed with 10% VAE emulsion and 5% stearic acid-polyvinyl alcohol emulsion, properties of the material are followed as: flexural strength 0.64MPa, compressive strength 1.35MPa, softening coefficient 0.71 and 2h volumetric water absorption 6.9%.

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