scholarly journals Enhancing physical-thermal-mechanical properties of fired clay bricks by eggshell as a bio-filler and flux

2019 ◽  
Vol 51 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Nuchnapa Tangboriboon ◽  
Sopita Moonsri ◽  
Atima Netthip ◽  
Watchara Sangwan ◽  
Anuvat Sirivat
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Thermal Expansion ◽  
Thermal Properties ◽  
Water Absorption ◽  
Extrusion Process ◽  
Clay Brick ◽  
Clay Bricks ◽  
Low Thermal Expansion ◽  
Thermal Mechanical Properties

Fired clay bio-bricks were prepared by adding eggshell as a bio-filler and flux into earthenware clay compounds via an extrusion process. In this study, the suiTab. conditions for clay bricks preparation were firing at 1000?C for a period of 5 h. Adding 20 wt% eggshell powder into the clay brick yielded good physical-mechanical-thermal properties: high compressive strength and hardness, low thermal expansion coefficient, and low water absorption. The measured compressive strength, hardness, and refractory water absorption were 7.0 MPa, 6.0 HV, and less than 15 wt%, respectively. The obtained clay brick with the eggshell powder added as shown here is potential for uses as bricks for construction and thermal insulation.

Mechanical Properties and Thermal Conductivity of Lightweight Clay Bricks Fabricated with a Powdered Marble Dust Additive

2018 ◽  
Vol 777 ◽  
pp. 465-470
Author(s):  
Sutas Janbuala ◽  
Mana Eambua ◽  
Arpapan Satayavibul ◽  
Watcharakhon Nethan
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Compressive Strength ◽  
Water Absorption ◽  
Bulk Density ◽  
Firing Temperature ◽  
Apparent Porosity ◽  
Clay Brick ◽  
Clay Bricks ◽  
Marble Dust

The objective of this study was to recycle powdered marble dust to improve mechanical properties and thermal conductivity of lightweight clay bricks. Varying amounts of powdered marble dust (10, 20, 30, and 40 vol.%) were added to a lightweight clay brick at the firing temperatures of 900, 1000, and 1100 °C. When higher quantities of powdered marble dust were added, the values of porosity and water absorption increased while those of thermal conductivity and bulk density decreased. The decrease in apparent porosity and water absorption were also affected by the increase in firing temperature. The most desirable properties of the clay bricks were obtained for the powdered marble dust content of 40 vol.% and firing temperature 900 °C: bulk density of 1.20 g/cm3, compressive strength 9.2 MPa, thermal conductivity 0.32 W/m.K, and water absorption 22.5%.

THERMAL CONDUCTIVITY, COMPRESSIVE STRENGTH AND WATER ABSORPTION OF RECYCLED COCONUT FIBRE AND CRUSHED CLAY BRICK MASONRY

2015 ◽  
Vol 76 (11) ◽  
Author(s):  
Renga Rao Krishnamoorth ◽  
Thevaneyan Krista David
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Thermal Properties ◽  
Water Absorption ◽  
Green Building ◽  
Clay Brick ◽  
Coconut Fiber ◽  
Commercial Development ◽  
Line Heat Source ◽  
Clay Bricks

This study aims to investigate the thermal conductivity, compressive strength and water absorption analysis of recycled masonry bricks using coconut fiber and crushed clay bricks as a partial sand replacement to create a green building material. The variable ratios of coconut fiber were considered and 10 specimens per sample were manufactured manual process using hand. Four (4) series of brick mix design from the total weight of the sand with different levels of coconut fiber and crushed clay brick replace half of the sand was created as irregular mixes comprises of 0%, 2%, 4% and 6% of coconut fiber. Overall, the use of coconut fiber and crushed clay brick as a partial sand replacement reduce the brick thermal conductivity. Thermal properties were measured based on the transient line heat source method using a KD2 Pro thermal properties analyzer. The suitable percentage of partial sand replacement for sand-cement brick using coconut fiber in this study was 4% and 50% of crushed clay brick after compared to commercial brick. The average sample of 4% coconut fiber was 0.532 W/mk of thermal conductivity and 18.74MPa compressive strength with density of 1716.28 kg/m3. In short, the thermal insulation potential of coconut fiber and crushed clay brick is highly promising for commercial development in Malaysia.

The Effect of Steel Slag Coarse Aggregate on the Mechanical and Durability Performances of Concrete

2020 ◽  
Vol 833 ◽  
pp. 228-232
Author(s):  
Md. Jihad Miah ◽  
Mohammad Shamim Miah ◽  
Anisa Sultana ◽  
Taukir Ahmed Shamim ◽  
Md Ashraful Alom
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Water Absorption ◽  
Coarse Aggregate ◽  
Steel Slag ◽  
Experimental Investigations ◽  
Clay Brick ◽  
Crushing Strength ◽  
Burnt Clay ◽  
Good Agreement

This work performs experimental investigations on concrete made with difference replacement percentage of first-class burnt clay brick aggregate (0, 10, 20, 30, 40, 50, 60, 80, and 100%) by steel slag (SS) aggregate. The aim is to evaluate the mechanical properties as well as durability performances, additionally, water absorption porosity test is performed to investigate the influence of steel slag aggregate on the durability of tested concrete. The experimental results have shown that the compressive strength was improved significantly due to the replacement of brick aggregate by steel slag aggregate. The crushing strength of concrete made with 100% steel slag aggregate has gained up to 70% more than the control concrete (100% brick aggregate). However, the porosity of concrete was reduced with the adding percentage of brick aggregate by steel slag aggregate which is consistent with the compressive strength results. Further, a quite good agreement between compressive strength and porosity was observed as well.

scholarly journals Thermal properties of polypropylene and high modulus polyethylene fibers reinforced concretes

2020 ◽  
Vol 13 (1) ◽  
pp. 32-38
Author(s):  
J. C. AMARAL JR ◽  
W. G. MORAVIA
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Compressive Strength ◽  
Thermal Expansion ◽  
Thermal Properties ◽  
Construction Industry ◽  
Polymer Fibers ◽  
High Modulus ◽  
Modulus Polyethylene ◽  
Polyethylene Fibers

Abstract Concrete is one of the materials most used by the construction industry. Reinforcing this material with fibers is a technique used to improve its mechanical properties. Steel and polymer fibers are the main types used in this application and there are few studies about the influence of polymer fibers on the thermal properties of concrete. In order to analyze this influence, the present work carried out thermal conductivity, thermal expansion, and compressive strength after exposure to a temperature of 200 °C on specimens made of concrete with addition of polypropylene (PP) fibers and concrete with addition of high modulus polyethylene (HMPE). It was also conducted thermogravimetric analysis (TGA) on PP and HMPE fibers. The results show that the addition of polymer fibers alters the thermal properties of the concrete, reducing its thermal expansion, for example.

Application of Dry Grass for Clay Brick Manufacturing

2017 ◽  
Vol 757 ◽  
pp. 35-39
Author(s):  
Nonthaphong Phonphuak
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Optimal Condition ◽  
Bulk Density ◽  
Firing Temperature ◽  
Apparent Porosity ◽  
Test Results ◽  
Clay Brick ◽  
Clay Bricks

In this paper, effects of incorporation of dry grass on the properties of clay bricks were investigated. Clay bricks fabricated with 0, 2.5, 5 and 7.5 % (w/w) of dry grass were tested. The clay brick specimens were fired at 900, 1000 and 1100 °C to study for bulk density, apparent porosity water absorption and compressive strength of brick samples were investigated. Results revealed that the bulk density of clay bricks were reduced when dry grass dosages increased. Results also shown that the increasing in bulk density were obtained when the firing temperature increased. The compressive strength of clay bricks was decreased when dry grass dosages increased. The addition of 2.5 % (w/w) dry grass fired at 1100 °C showed the optimal condition which indicated 11.6 MPa of compressive strength and 1.78 g/cm3 of bulk density. However, results indicated that a decrease in water absorption and apparent porosity were found when the firing temperature increased. Test results also revealed that the addition of dry grass for clay brick production lead to utilize a potential material as the additive to raw clay-bricks in the manufacturing of lightweight clay bricks.

Influence of Rice Husk Ash on the Engineering Properties of Fired-Clay Brick

2013 ◽  
Vol 795 ◽  
pp. 14-18 ◽  
Author(s):  
Y.C. Khoo ◽  
I. Johari ◽  
Zainal Arifin Ahmad
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Engineering Properties ◽  
Clay Brick ◽  
Minimum Requirement ◽  
X Ray ◽  
Clay Bricks ◽  
Sand Temperature

The aim of this study is to determine the influence of rice husk ash (RHA) on the engineering properties of fired-clay brick with the present of 10% sand. Temperature 1200°C is selected as the optimum temperature based on the preliminaries study. X-ray Diffraction (XRD) and X-Ray Fluorescence (XRF), were carried out to determine the characteristic of raw materials used. Mechanical properties of rice husk ash-clay bricks are determined in terms of compressive strength, porosity and water absorption. The results shows that increase in RHA replacement percentage reduce the compressive strength and linear shrinkage of fired-clay bricks while the porosity and water absorption value increase. From the investigation, we can conclude that the optimum mixing ratio for fired-clay brick containing RHA is 15% because it complied with the minimum requirement for building material in term of strength and water absorption.

scholarly journals Modifikasi Resipren dan Bitumen Dalam Peningkatan Kekuatan Aspal

2019 ◽  
Vol 2 (1) ◽  
pp. 129-134
Author(s):  
Fitri Ikova M ◽  
Tamrin Tamrin ◽  
Darwin Yunus Nasution
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Thermal Properties ◽  
Water Absorption ◽  
Produced Water ◽  
Asphalt Mixture ◽  
Fine Sand ◽  
Maximum Compressive Strength ◽  
Coarse Gravel ◽  
Made In

Modifikasi Resipren dan Bitumen dalam Peningkatan Kekuatan Aspal telah dilakukan. Aspal modifier dibuat dalam 7 jenis variasi perbandingan aspal, bitumen, dengan resipren yang telah dilarutkan dengan toluene sebesar 75:20:5 ; 70:20:10 ; 65:20:15 ; 60:20:20 ; 55:20:25 (v/v/b) dalam 100 mL, penambahan agregat pasir halus 300 gram dan agregat kasar kerikil 50 gram, dan diproses dalam ekstruder pada suhu 150oC. Sifat mekanik dan sifat termal aspal modifier yang diuji meliputi kuat tekan, daya serap air, morfologi dengan TEM. Hasil karakterisasi menunjukkan bahwa campuran aspal, bitumen, dan resipren dengan perbandingan 55 : 20 : 25 efektif dalam meningkatkan sifat mekanis dari campuran aspal dimana dihasilkan kekuatan tekan maksimum sebesar 0,974 mPa. Sifat fisik menghasilkan penyerapan air sebesar 0,63%. Hasil uji morfologi dengan TEM memperlihatkan adanya perbedaan setelah bitumen ditambahkan kedalam campuran aspal dan resipren.   Recipient and bitumen modifications in asphalt strengthening had been carried out. Asphalt modifier was made in 7 types of comparison of asphalt, bitumen variation, with recipient (dissolved with toluene by 75: 20: 5; 70:20:10; 65:20:15; 60:20:20; 55:20:25 (v/v/b) in 100 mL), 300 grams of fine sand aggregate and 50 grams of coarse gravel aggregate; then processed in an extruder at 150oC. The mechanical properties and thermal properties of the modifier test included compressive strength, water absorption, and morphology with TEM. The characterization results showed that asphalt, bitumen and recipient mixtures with a ratio of 55: 20: 25 were effective in increasing the mechanical properties of the asphalt mixture where the maximum compressive strength was 0.974 mPa. Physical properties produced water absorption of 0.63%. The results of morphological tests with TEM showed that there was a difference after bitumen was added to the asphalt and recipient mixture.

Effect of Rice Husk and Rice Husk Ash on Properties of Lightweight Clay Bricks

2015 ◽  
Vol 659 ◽  
pp. 74-79 ◽  
Author(s):  
Sutas Janbuala ◽  
Thanakorn Wasanapiarnpong
Keyword(s):  
Compressive Strength ◽  
Organic Matter ◽  
Chemical Composition ◽  
Water Absorption ◽  
Bulk Density ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Clay Brick ◽  
Clay Bricks ◽  
The Difference

The objective of this study is to investigate the effect of rice husk and rice husk ash which have the difference chemical composition and organic matter on porosity and properties of lightweight clay brick . Comparative adding between rice husk and rice husk ash were varied by 10, 20, 30, 40 % by weight. The results showed that more adding of rice husk and rice husk ash increase pore in microstructure and water absorption, while decrease bulk density. Porosity and water absorption are maximized when the rice husk are added at 40 %. The clay brick with 10, 20 and 30 % of rice husk or rice husk ash addition showed the required density and compressive strength followed the industrial standard of lightweight brick. The addition with 10 % of rice husk showed the best properties as 1.20 g/cm3 of bulk density and 4.6 MPa of compressive strength with 36.57 % of porosity. Whereas, the 10 % addition of rice husk ash showed 1.18 g/cm3 of bulk density and 5.97 MPa with 37.27 % of porosity.

scholarly journals Influence of the diameter of ground date pits on the technological properties of clay bricks

Cerâmica ◽  
2018 ◽  
Vol 64 (372) ◽  
pp. 589-597 ◽  
Author(s):  
G. Djafri ◽  
N. Chelouah
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Water Absorption ◽  
Apparent Density ◽  
Technological Properties ◽  
Clay Brick ◽  
Sem Micrographs ◽  
Clay Bricks ◽  
Different Diameters ◽  
Date Pits

Abstract The main aim of this study was to evaluate the effect of diameter of ground date pits (GDP) on the technological properties of a clay brick. For this purpose, increasing amounts of GDP (0, 5, 10, 15 and 20 wt%) with different diameters were mixed with a clay to produce clay bricks by pressing, drying and then firing at 900 °C. The GDP diameter and content changed the water requirement for plasticity. The shrinkage, water absorption and apparent porosity of fired clay brick increased with the content and diameter of GDP. The compressive strength, apparent density and thermal conductivity of the samples decreased with the increase in diameter and content of GDP. With the help of SEM micrographs, it was observed that the combustion of added GDP in the mixture led to a reduction in the diameter of pores formed in the fired clay brick samples.

The Utilization of Coconut Fibre into Fired Clay Brick

2016 ◽  
Vol 673 ◽  
pp. 213-222 ◽  
Author(s):  
Aeslina Abdul Kadir ◽  
Siti Noorhajar Mohd Zulkifly ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Noor Amira Sarani
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Low Cost ◽  
Physical And Mechanical Properties ◽  
Firing Process ◽  
Dry Density ◽  
Clay Brick ◽  
Gas Emissions ◽  
Clay Bricks ◽  
Coconut Fibre

Over the year, agricultural establishment produced many types of waste in its daily operation. Coconut fibre for example is one of the most abundant agricultural wastes produced in Malaysia. Despite the massive amount of the waste produced, the standards of waste management in Malaysia are still poor. The main purpose of this study is to focus on the potential of coconut fibre utilization into fired clay bricks. The objectives of this study are to determine the characteristics of coconut fibre, to identify the gas emissions during firing process from coconut fibre brick and to investigate the physical and mechanical properties of from coconut fibre (1%, 3% and 5%) incorporation into fired clay brick. All the bricks were fired in a furnace up to 1050°C at 1°C/min. The gas emissions that were measured are carbon monoxide (CO), carbon dioxide (CO2) and sulphur dioxide (SO2). Based on the three gases, the results showed that CO2 is the highest gas emission produced during the firing process. Physical and mechanical properties tested are total shrinkage, dry density and compressive strength. Results found that by adding different percentages of coconut fibre, most of the properties were complied with the standards except for the compressive strength of 5% of coconut fibre in clay brick. Therefore, the utilization of coconut fibre could be one of the alternative disposal methods for agriculture waste and it will also provide low-cost material for brick that produce adequate physical and mechanical properties.

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