scholarly journals Elaboración de ladrillos con merma de una empresa que fabrica espumas reticuladas

2019 ◽  
pp. 7-11
Author(s):  
Guadalupe Martín-Del Campo ◽  
Gabriela Hernández
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Economic Feasibility ◽  
Technical Feasibility ◽  
Reference Target ◽  
Percentage Of Water Absorption ◽  
A Company

A proposal was developed to make bricks based on ground shrinkage of a company that is dedicated to the manufacture of cross-linked foams, the process consisted of first establishing the dimensions according to what is currently in the market, a reference target was determined with concentrations similar to an artisanal brick, immediately replacing the white concentrations for test A were 40% of tepojal, 30% of cement, 20% of sand and 10% of shrinkage and test B of 45% of Tepojal, 35% sand, 20% depletion, to evaluate the technical feasibility in the elaboration of the specifications of NMX-C-441-ONNCCE, such as compressive strength, water absorption and dimensions, as well as The density of the elaborated bricks, which was obtained as a result of that of test B is very viable for non-structural use, that is to say dividing walls, since it supports a load of 1000 kg, they are efficient to place them at weathering since the percentage of water absorption is 4%, as well as the economic feasibility, with a cost of $ 13.1.

scholarly journals The Effect of Polycarboxylate as a Superplasticizer on the Engineering Properties of Foam Concrete

2020 ◽  
pp. 06-11
Author(s):  
Hassan H ◽  
Esan M. T ◽  
Lamidi I. O ◽  
Akinyele I. O
Keyword(s):  
Compressive Strength ◽  
Flexural Strength ◽  
Water Absorption ◽  
Engineering Properties ◽  
Foam Concrete ◽  
Engineering Characteristics ◽  
Percentage Of Water Absorption ◽  
Polycarboxylate Ether

The effect of polycarboxylate ether superplasticizer on engineering characteristics was explored which includes compressive, flexural strength and water absorption. The findings of the test revealed that 1.5% addition of polycarboxylate ether superplasticizer decrease the compressive strength but appreciate the flexural strength. However, the percentage of water absorption ability was found reducing due to the increase in the Polycarboxylate Ether Superplasticizer dosage. Conclusively, the addition of Polycarboxylate Ether Superplasticizer of 1.5% in foam concrete has effect on the compressive strength.

Development Plant Pots from Carbon Powder and Oil Palm Fiber

2017 ◽  
Vol 866 ◽  
pp. 176-179
Author(s):  
Woranuch Deelaman ◽  
Manoch Lakthandee ◽  
Wannisa Inchan ◽  
Panupong Srilarat ◽  
Nattha Panthong
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Decay Rate ◽  
Oil Palm ◽  
Essential Elements ◽  
Carbon Powder ◽  
Palm Fiber ◽  
Optimum Formulation ◽  
Swelling Rate ◽  
Percentage Of Water Absorption

The objective of this work was to determine the optimum formulation for producing planting pots, by varying ratio of oil palm fiber and carbon powder contents. The decay rate, swelling rate, water absorption and released elements (nitrogen, phosphorous and potassium) from decay of plant pots were investigated. In addition, the compressive strength of samples was evaluated from compression machine. The results show that the optimum ratio between weight of carbon powder and oil palm fiber for producing plant pots was 315:259. It was found maximum compressive strength is 16.4 kN/cm2.The percentage of the decay rate of samples within 45 days is 26.08 %wt. The rates of swelling for 2 and 24 h are 3.09 and 6.88%, respectively. Moreover, the result of water absorption shows that the percentage of water absorption is 94 %wt. The decomposition of plant pots was found to release the essential elements for plant growth.

scholarly journals The Effects of Using Ceramic Waste Powder and Palm Fiber on Mortar properties

2020 ◽  
Author(s):  
AL-AZHAR ZAHIR MOHAMMED AL-RUQAISHI ◽  
Omar R. Khaleel
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Ceramic Powder ◽  
Strength Test ◽  
Palm Fiber ◽  
Ceramic Waste ◽  
Compressive Strength Test ◽  
The World ◽  
Water Absorption Test ◽  
Percentage Of Water Absorption

There are multiple industries that generate ceramic in the world. The ceramic waste ends as a landfill; and there is no it’s recycle. Moreover, palm fibers can be used for various purposes such as it can be mixed with mortar in order to minimize cracks. The objective of this study was to investigate the effects of using ceramic waste powder and palm fiber on properties of mortar. OPC is partially replaced with ceramic waste powder with different percentages such as 10%, 20%, and 30% and palm fiber is added with 10% of replacement only at 0.5%, 1% and 1.5% of the weight of cement. The specimens are compared with the reference mix in the water absorption test under 105co for 24/h and compressive strength test after 7 and 14 days. The results showed that the optimum percentage of cement replacement with ceramic powder was 10%. Regarding the fiber, the percentage of water absorption got increased while increasing the fiber. The compressive strength of mortar with fiber was obtained more than the normal. More percentage of fiber led to more strength of mortar.   

Incorporation of Iraqi Rocks in the Production of Eco-Friendly Cement Mortar

2020 ◽  
Vol 38 (10A) ◽  
pp. 1522-1530
Author(s):  
Rawnaq S. Mahdi ◽  
Aseel B. AL-Zubidi ◽  
Hassan N. Hashim
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Compressive Strength ◽  
Water Absorption ◽  
Structural Properties ◽  
Mechanical Milling ◽  
Cement Mortar ◽  
Cement Mortars

This work reports on the incorporation of Flint and Kaolin rocks powders in the cement mortar in an attempt to improve its mechanical properties and produce an eco-friendly mortar. Flint and Kaolin powders are prepared by dry mechanical milling. The two powders are added separately to the mortars substituting cement partially. The two powders are found to improve the mechanical properties of the mortars. Hardness and compressive strength are found to increase with the increase of powders constituents in the cement mortars. In addition, the two powders affect water absorption and thermal conductivity of the mortar specimens which are desirable for construction applications. Kaolin is found to have a greater effect on the mechanical properties, water absorption, and thermal conductivity of the mortars than Flint. This behavior is discussed and analyzed based on the compositional and structural properties of the rocks powders.

scholarly journals The Effect of Polymer Waste Addition on the Compressive Strength and Water Absorption of Geopolymer Ceramics

2021 ◽  
Vol 11 (8) ◽  
pp. 3540
Author(s):  
Numfor Linda Bih ◽  
Assia Aboubakar Mahamat ◽  
Jechonias Bidossèssi Hounkpè ◽  
Peter Azikiwe Onwualu ◽  
Emmanuel E. Boakye
Keyword(s):  
Public Health ◽  
Compressive Strength ◽  
Fracture Surface ◽  
Water Absorption ◽  
Chemical Bonding ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Polymer Waste ◽  
Pull Out

The quantity of polymer waste in our communities is increasing significantly. It is therefore necessary to consider reuse or recycling waste to avoid an increase in the risk to public health. This project is aimed at using pulverized low-density polyethylene (LDPE) waste as a source to reinforce and improve compressive strength, and to reduce the water absorption of geopolymer ceramics (GC). Clay:LDPE composition consisting of 5%, 10%, and 15% LDPE was geopolymerized with an NaOH/Na2SiO3 solution and cured at 30 °C and 50 °C. Characterization of the geopolymer samples was carried out using XRF and XRD. The microstructure was analyzed by SEM and chemical bonding by FTIR. The SEM micrographs showed LDPE particle pull-out on the geopolymer ceramics’ fracture surface. The result showed that the compressive strength increases with the addition of pulverized polymer waste compared to the controlled without LDPE addition. Water absorption decreased with an increase in LDPE addition in the geopolymer ceramics composite.

Study on Waterproof and Water-Resistant Properties of Gypsum

2012 ◽  
Vol 476-478 ◽  
pp. 1585-1588
Author(s):  
Hong Pan ◽  
Guo Zhong Li
Keyword(s):  
Compressive Strength ◽  
Flexural Strength ◽  
Portland Cement ◽  
Water Absorption ◽  
Ordinary Portland Cement ◽  
Experimental Results ◽  
Softening Coefficient

The comprehensively modified effect of cement, VAE emulsion and self-made acrylic varnish on mechanical and water-resistant properties of gypsum sample was investigated and microstructure of gypsum sample was analyzed. Experimental results exhibit that absolutely dry flexural strength, absolutely dry compressive strength, water absorption and softening coefficient of gypsum specimen with admixture of 10% ordinary Portland cement and 6% VAE emulsion and acrylic varnish coated on its surface can respectively reach to 5.11MPa , 10.49 MPa, 8.32% and 0.63, respectively.

PEMANFAATAN LIMBAH KOTORAN SAPI SEBAGAI PENGGANTI SEBAGIAN SEMEN DALAM PEMBUATAN BATAKO

2020 ◽  
Vol 15 (2) ◽  
pp. 53-57
Author(s):  
Kiki Kurniawan ◽  
Prihantono Prihantono ◽  
Rosmawita Saleh
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Mean Value ◽  
Cow Dung ◽  
A Value ◽  
Average Water ◽  
Hollow Brick ◽  
Average Compressive Strength

The results showed the use of cow dung waste can increase the compressive strength of hollow brick from any composition of waste. Hollow brick with cow dung substitution of 0% has an average compressive strength value 44.75 Kg/Cm2 has an average water absorption of 14.31%, hollow brick with cow dung substitution of 5% has a value of compressive strength average 47.47 Kg/Cm2 has an average water absorption of 15.67%, Batako perforation with cow dung substitution of 7.5% has an average compressive strength value of 51.83 Kg/Cm2 has the absorption water averaging 13.71%, batako perforated with substitution of cow dung waste of 10% has an average compressive strength value 53.81 Kg/Cm2 has an average water absorption of 10.04%, hollow brick with substitution cow dung waste of 12.5% has an average compressive strength value of 50.66 Kg/Cm2 has an average water absorption of 23.6%, hollow brick with cow dung substitution of 15% average 48.84 Kg/Cm2 has an average water absorption of 19.72%. The optimum compressive strength value was obtained from percentage substitution of cow dung waste at 10% with mean value of compressive strength 53,81 Kg/Cm2 with average water absorption 10,04%.

scholarly journals Influence of the surface treatment of tire rubber residues added in mortars

2008 ◽  
Vol 1 (2) ◽  
pp. 113-120 ◽  
Author(s):  
A. C. Marques ◽  
J. L. Akasaki ◽  
A. P. M. Trigo ◽  
M. L. Marques
Keyword(s):  
Mechanical Properties ◽  
Aqueous Solution ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Surface Treatment ◽  
Water Absorption ◽  
Modulus Of Elasticity ◽  
Tire Rubber ◽  
Flow Test ◽  
Made In

In this work it was evaluated the influence tire rubber addition in mortars in order to replace part of the sand (12% by volume). It was also intended to verify if the tire rubber treatment with NaOH saturated aqueous solution causes interference on the mechanical properties of the mixture. Compressive strength, splitting tensile strength, water absorption, modulus of elasticity, and flow test were made in specimens of 5cmx10cm and the tests were carried out to 7, 28, 56, 90, and 180 days. The results show reduction on mechanical properties values after addition of tire rubber and decrease of the workability. It was also observed that the tire rubber treatment does not cause any alteration on the results compared to the rubber without treatment.

Hygrothermal Behavior of T700 and T300 BMI Used for Advanced Polymeric Composite

2012 ◽  
Vol 476-478 ◽  
pp. 632-635 ◽  
Author(s):  
Shuang Wang ◽  
Wei Fang Zhang ◽  
Yu Chen ◽  
Yu Fen Wu
Keyword(s):  
Compressive Strength ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Surface Morphology ◽  
Water Absorption ◽  
Failure Mode ◽  
Polymeric Composite ◽  
Compressive Properties ◽  
Hygrothermal Behavior

The mechanism of hydrothermal ageing was investigated for T700/ BMI 5428 and T300/QY8911 by studying its glass transition temperature, tensile/compressive properties, changes of surface morphology absorbed in water with 100°C temperature. Results show that the glass transition temperature getting lower with the rate of water absorption. The tensile/compressive strength of composite decreased in the humid and heat environments, although with the identical failure mode.

scholarly journals Biodegradable, Flame-Retardant, and Bio-Based Rigid Polyurethane/Polyisocyanurate Foams for Thermal Insulation Application

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1816 ◽  
Author(s):  
Marcin Borowicz ◽  
Joanna Paciorek-Sadowska ◽  
Jacek Lubczak ◽  
Bogusław Czupryński
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Water Absorption ◽  
Flame Retardant ◽  
Functional Properties ◽  
Apparent Density ◽  
Seed Oil ◽  
Mustard Seed ◽  
Hydroxyl Groups ◽  
Processing Times

This article raised the issue of studies on the use of new bio-polyol based on white mustard seed oil and 2,2’-thiodiethanol (3-thiapentane-1,5-diol) for the synthesis of rigid polyurethane/polyisocyanurate (RPU/PIR) foams. For this purpose, new formulations of polyurethane materials were prepared. Formulations contained bio-polyol content from 0 to 0.4 chemical equivalents of hydroxyl groups. An industrial flame retardant, tri(2-chloro-1-methylethyl) phosphate (Antiblaze TCMP), was added to half of the formulations. Basic foaming process parameters and functional properties, such as apparent density, compressive strength, brittleness, absorbability and water absorption, aging resistance, thermal conductivity coefficient λ, structure of materials, and flammability were examined. The susceptibility of the foams to biodegradation in soil was also examined. The increase in the bio-polyol content caused a slight increase in processing times. Also, it was noted that the use of bio-polyol had a positive effect on the functional properties of obtained RPU/PIR foams. Foams modified by bio-polyol based on mustard seed oil showed lower apparent density, brittleness, compressive strength, and absorbability and water absorption, as well as thermal conductivity, compared to the reference (unmodified) foams. Furthermore, the obtained materials were more resistant to aging and more susceptible to biodegradation.

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