scholarly journals Effects of waste ceramic aggregate on compressive strength of cement mortar

2020 ◽  
Vol 30 (3) ◽  
pp. 311-316
Author(s):  
MSH Sunny ◽  
MR Islam ◽  
MS Rahman ◽  
MT Hasan
Keyword(s):  
Compressive Strength ◽  
Building Materials ◽  
Cement Mortar ◽  
Raw Materials ◽  
Low Cost ◽  
Curing Period ◽  
Low Load ◽  
Natural Aggregates ◽  
The Cost ◽  
Fineness Modulus

In Bangladesh, the cost of building materials is increasing gradually, available raw materials of construction are not sufficient to meet up the needs of the country. For that we have to find out cheaper and waste materials (such as ceramic waste) to reuse for construction. The study was conducted to observe the physical properties of waste ceramics and compressive strength of ceramics mortar for different curing ages. The study was done to check the probability of using waste ceramics instead of natural aggregates (sand).The fineness modulus of ceramics aggregates was 2.94. Ceramic aggregate absorbs 5.89% moisture whereas sand absorbs 14.33%. Generally, finer the aggregate shows greater the compressive strength. Though the fineness modulus of ceramics was greater than that of sand, it possessed higher compressive strength because of its self-strength. The ratio of mortar mixture was (1:2) and (1:3) for different curing periods both sand and ceramics samples. The compressive strength of sand and ceramic mortar was 2603 psi and 3500 psi respectively at the ratio of (1:2) for 3 days curing. On the other hand the compressive strength of sand and ceramics mortar was 2340 psi and 3075 psi respectively at the ratio of (1:3) for 3 days curing. Between the sand and ceramic mortar, the compressive strength of ceramic mortar was found maximum at 28 days curing period. It can be concluded that recycled ceramic aggregates will be used in comparatively low load bearing, low cost temporary and medium category farming etc. concrete structure. Progressive Agriculture 30 (3): 311-316, 2019

Study on Reuse of Wasted Diatomite from Brewing Industry for Building Materials

2020 ◽  
Vol 845 ◽  
pp. 73-78
Author(s):  
Yeng Fong Shih ◽  
Wei Cheng Hou ◽  
Venkata Krishna Kotharangannagari
Keyword(s):  
Compressive Strength ◽  
Organic Matter ◽  
Thermogravimetric Analysis ◽  
Building Materials ◽  
Cement Mortar ◽  
Brewing Industry ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
The Cost ◽  
Average Compressive Strength

In order to solve environmental problems and reduce the cost of building materials, this study used waste diatomite from brewing industry to develop novel cement mortar and compared it with pristine one. After pretreatment with water, soaking, drying, it is shown in the microscope that the treated diatomite has recovered its porosity. The thermogravimetric analysis also showed that the purity of treated diatomite was greater than 93%, confirming that most of the originally adsorbed organic matter was removed. Further, the diatomite after the treatment was used to prepare a novel cement mortar, and it was found that the optimum compressive strength was obtained when the water-cement ratio was 0.65 and the amount of diatomite added was 20%. It was found that the average compressive strength after 28 days was 284.03 kg/cm2, which was 81.22 kg/cm2 higher than that of the pristine cement mortar. It is proved that the addition of diatomite can increase the strength of the cement mortar and effectively reuse the waste diatomite.

Influence of Mix Fly and Bottom Ashes from Biomass on Selected Properties of Cement Mortars

2019 ◽  
Vol 828 ◽  
pp. 14-17
Author(s):  
Malgorzata Ulewicz ◽  
Jakub Jura
Keyword(s):  
Electron Microscopy ◽  
Compressive Strength ◽  
Industrial Waste ◽  
Cement Mortar ◽  
Raw Materials ◽  
Bottom Ash ◽  
Waste Materials ◽  
X Ray ◽  
Cement Mortars ◽  
Fluorescence Spectrometer

The preliminary results of utilization of fly and bottom ash from combustion of biomass for the produce of cement mortars has been presented. Currently, this waste are deposited in industrial waste landfills. The chemical composition of waste materials was determined using X-ray fluorescence (spectrometer ARL Advant 'XP). ). In the studies sand was replaced by mix of fly and bottom ash from the combustion of biomass in an amount of 10-30% by weight of cement CEM I 42.5 R (Cemex). The obtained cement mortar concrete were subjected to microscopic examination (LEO Electron Microscopy Ltd.) and their compressive strength (PN-EN-196-1), frost resistance (PN-EN 1015-11 and PN-B -04500 ) and absorbability (PN-85/B-04500) were identified. The obtained results showed, the replacement of the cement by mix ashes from combustion of biomass reduce consumption of raw materials and will have a good influence on the environment.

scholarly journals PEMANFAATAN LIMBAH FLY ASH DARI PEMBAKARAN BATUBARA PADA PEMBUATAN SEMEN PCC (PORTLAND COMPOSITE CEMENT) DI PT SEMEN XYZ LAMPUNG

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Dwi Septiyana Sari ◽  
◽  
Susanti Sundari
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Raw Materials ◽  
Testing Machine ◽  
Technical Aspect ◽  
Raw Material ◽  
Physical Test ◽  
Composite Cement ◽  
The Difference ◽  
The Cost

Abstract This study discusses the use of fly ash waste from coal burning on the manufacture of PCC (Portland composite cement) at PT. XYZ Lampung. The purpose of this research is to look at the technical studies and the efficiency of raw materials in the use of fly ash in cement making, in this case PCC cement (Portland Composite Cement). The steps taken in analyzing the data in this study were viewed from a technical aspect by means of a physical test, namely the cement compressive strength test at the age of 3 days, 7 days, and 28 days using the Compression Testing Machine. This test was conducted to see the comparison of the compressive strength of PCC cement using limestone and fly ash as raw materials, then calculate the difference in raw material costs in the year before and after the replacement of limestone with fly ash. The results showed that cement with the addition of fly ash after 3 days, 7 days and 28 days had an increased compressive strength value, which increased 21.69%, 16.07% and 8.05% respectively of the compressive strength of cement using limestone. The use of fly ash as a substitute for limestone has an effect on the cost of raw materials, where the difference between the cost of raw materials in 2019 and the cost of raw materials in 2018 is Rp. 39,440,952,074.

scholarly journals USE OF ZEOLITE IS ACTIVATED AS SUBSTITUTION OF CEMENT FOR PRICE AND COST

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Ahmad Nurfiki Alwi ◽  
Arif Rahman Setiaji ◽  
Abdurrohim Kurnia Agung ◽  
Abdul Halim
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Hypothesis Testing ◽  
Building Materials ◽  
Production Costs ◽  
Light Weight ◽  
Residential Community ◽  
High Production ◽  
The Cost ◽  
Cement Compounds

The number of economic needs is one of the fundamental aspects to support the survival of every individual in an area.  If seen in general, the cost of building the building and residential community still use building materials and installation costs are relatively higher.  With the advancement of technology has found a lightweight brick that has better strength, lighter, faster installation and environmentally friendly, so many people began to switch to using lightweight bricks.  For now the price of lightweight brick is still expensive, but this deficiency is covered with the speed of mounting and light weight so overall lightweight brick usage on certain patterns is very profitable.  The use of cement on lightweight bricks leads to high production costs.  With the above problems we have a breakthrough to replace the cement by using zeozolites containing silica compounds that resemble one of the cement compounds.  In this research, cement replacement with Zeolite is 20%, 40% and 60%.  Before use Zeolite was first activated using Fly Ash ratio of 65% Zeolite: 35% Fly Ash and 50% Zeolite: 50% Fly Ash, also activated using Ca (OH) 2 ratio 65% Zeolite: 35% Ca (OH) 2  And 50% Zeolite: 50% Ca (OH) 2.  Thus, there are 15 compositions including the control composition, each composition will be made up of 10 specimens.  Hypothesis testing using two way anova, tested is the effect of cement change treatment with Zeolite and comparison of Zeolite composition with Fly Ash and Ca (OH) 2 to compressive strength, absorption and cost. Keywords: Zeolite, Cement, compressive strength, Cost

Research on the Properties of Sea Sand Mortar

2013 ◽  
Vol 405-408 ◽  
pp. 2871-2875
Author(s):  
Yi Fan ◽  
Rong Hui Zhang ◽  
Zhen Bei Chen
Keyword(s):  
Large Scale ◽  
Building Materials ◽  
Cement Mortar ◽  
Colloidal Crystal ◽  
Low Cost ◽  
Scale Construction ◽  
River Sand ◽  
Sea Sand

With the city's large-scale construction, there have been a shortage of river sand in some areas. So, abundant, low-cost sea sand gradually being used in construction. However, sea sand can not be directly applied to the production of building materials, such as building mortar. Sea sand must be desalted and admixtures must be added to the sea sand mortar. In this paper, using a variety of sand to make cement mortar, and comparing the performance of them. Studies have shown that, compared with the ordinary mortar, the strength and the durability of the sea sand mortar modified by colloidal crystal have improved significantly.

Study on Light Porous Unsintered Building Material

2012 ◽  
Vol 532-533 ◽  
pp. 144-148
Author(s):  
Cong Cong Jiang ◽  
Gou Zhong Li ◽  
Qi Jin Li
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Red Mud ◽  
Building Material ◽  
Building Materials ◽  
Thermal Conductivity Coefficient ◽  
Raw Materials ◽  
Ambient Conditions ◽  
Optimum Ratio ◽  
Broad Application

A light porous unsintered building material was prepared with red mud, fly ash, silica fume as the main raw materials, mixed with a certain amount of foam and curing agent, by the technology of casting and curing at ambient conditions. The influence of different ratio of red mud to fly ash on compressive strength was studied. The microstructure properties of light porous unsintered building material were characterized by scanning electron microscopy (SEM) and then the strength mechanism was studied. The results showed that the optimum ratio of red mud to fly ash was 2:1, and for the best sample, its bulk density was 891kg•m-3, 7d and 28d compressive strength were 8.4MPa and 14.7MPa, thermal conductivity coefficient was 0.235W•(m•K)-1, which may have a broad application prospect in the building materials field.

scholarly journals Economic Analysis of Geopolymer Brick Manufacturing: A French Case Study

2020 ◽  
Vol 12 (18) ◽  
pp. 7403
Author(s):  
Nicolas Youssef ◽  
Zoubeir Lafhaj ◽  
Christophe Chapiseau
Keyword(s):  
Compressive Strength ◽  
Economic Analysis ◽  
Industrial Production ◽  
Raw Materials ◽  
Future Research ◽  
Manufacturing Cost ◽  
Production Chain ◽  
French Case ◽  
Fired Bricks ◽  
The Cost

This paper presents an economic analysis of manufacturing geopolymer bricks for use in the construction sector. The manufacturing processes of both geopolymer bricks and traditional fired bricks were investigated. For this study, we collected and analyzed all phases of geopolymer brick production from the extraction of raw materials to storage. Seven formulations of geopolymer bricks based on clay and waste bricks were analyzed. We considered the cost of raw materials and logistics operations in the production line of brick manufacturing. The results of this study prove that the manufacturing cost of geopolymer bricks based on clay provides an economic gain of 5% compared to fired bricks for the same compressive strength of 20 MPa. In the case of waste bricks, for the same production cost, the compressive strength of the geopolymer bricks is double that of fired bricks. Hence, this study shows the economic interest in the industrial production of geopolymer bricks. It also confirms that future research is needed that focuses on necessary changes to the current industrial production chain required for the manufacture of geopolymer bricks.

Research on Desulphurization and Skimming Slag Tailing Used as Building Materials

2011 ◽  
Vol 233-235 ◽  
pp. 2332-2336
Author(s):  
Li Xia Li ◽  
Xiao Liu ◽  
Yue Xin Han ◽  
Qi Dong Yuan ◽  
Ning Bo Song
Keyword(s):  
Compressive Strength ◽  
Specific Surface ◽  
Frost Resistance ◽  
Building Materials ◽  
Cement Mortar ◽  
Rupture Strength ◽  
Blended Cement ◽  
Optimum Amount ◽  
Cement Strength ◽  
Curing Age

With the purpose that the desulphurization and skimming slag tailings from Ansteel can be used as building materials, the slag tailings were ground to powders with specific surface area 560m2/kg , and then was blended in cement. Strength of slag tailings-blended cement, Physical-mechanical characteristic, frost-resistance and resistance to carbonizing of slag tailings-blended concrete were studied. The experiment results demonstrated that as the amount of tailings increasing, both of the compressive strength and the rupture strength of cement mortar with 3 and 28 curing age decrease gradually, also did the compressive strength of the concrete modules with 28 curing age. The reason why these strengths decreased was also given. The study showed that the optimum amount of slag tailings to be blended was between 10 wt.% to 20wt.%.

scholarly journals Pengendalian Persediaan Bahan Baku Oli Untuk Mesin Diesel Tipe G4J-801, G5J-801 dan G7J-801 di PT. Hansan Asembling – Malang

2017 ◽  
Vol 1 (1) ◽  
pp. 33
Author(s):  
Rony Prabowo
Keyword(s):  
Inventory Control ◽  
Historical Data ◽  
Raw Materials ◽  
Low Cost ◽  
Raw Material ◽  
Oil Companies ◽  
Production Forecasting ◽  
The Cost ◽  
And Storage

Inventories of raw materials is one of the most important elements in the company's operations are continuously must be obtained, processed and resold. The raw material is meant for the smooth running of production operations set. So, we need an optimum inventory levels to meet the needs of both the quantity, quality and time at a low cost. For that we need a system of planning and inventory control are best - well, that inventories of raw materials should be defined and calculated correctly and accurately in order to obtain a low total cost of inventory that can minimize the cost of production. Forecasting approach is expected to represent the number of actual demand in the coming period. Based on the number of requests of forecasting results can be determined raw material inventory control. By using EOQ then firms will be able to minimize the cost of raw material supplies of oil. Companies should pay attention to the order of recording historical data of oil, classification of costs - the cost of orders and storage costs, because such data is necessary to obtain optimal results inventory control. Keywords: inventory control planning, forecasting, EOQ

scholarly journals The use of screening of crushed granite stone for the production of building materials

2021 ◽  
Vol 340 ◽  
pp. 01004
Author(s):  
Fedor Gorbunov ◽  
Lilia Berdnikova ◽  
Victor Bulgakov ◽  
Alexandra Fadina ◽  
Andrey Lapin
Keyword(s):  
Compressive Strength ◽  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Processing Temperature ◽  
Crushed Granite ◽  
Liquid Products ◽  
Pore Liquid ◽  
Technogenic Raw Materials ◽  
Softening Coefficient

The possibility of using technogenic raw materials – the screening of crushed stone with the addition of cullet based on a silicate binder for the production of construction materials for structural purposes is studied. By varying the processing temperature, it was possible to increase the softening coefficient of the products and to achieve the pH neutrality of their pore liquid. Products processed at a temperature of 500700 °C have the following performance characteristics: the compressive strength 16.6-31.4 MPa, the bendingstrength 3.4-5.9 MPa.

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