scholarly journals IMPLEMENTASI PERMEN ESDM NO. l7 TAHUN 20l2 SEBAGAI SOLUSI ANTARA PENGUSAHAAN MINERAL DAN PERLINDUNGAN KAWASAN KARST DI INDONESIA

2020 ◽  
Vol 1 (1) ◽  
pp. 847-862
Author(s):  
Aris Dwi Nugroho ◽  
Tantan Hidayat ◽  
Muhammad Wachyudi Memed
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Water System ◽  
Mineral Resources ◽  
Silica Sand ◽  
Infrastructure Development ◽  
Karst Landscape ◽  
The Government ◽  
Materials Used ◽  
Scientific Value

ABSTRAKSemen  adalah  serbuk atau tepung yang terbuat  dari kapur  dan material lainnya  yang dipakai  untuk membuat beton, merekatkan batu bata ataupun membuat tembok (Kamus Besar Bahasa Indonesia, 2008). Semen  merupakan  suatu  bahan  yang  bersifat  hidrolis,  yaitu  bahan  yang  akan  mengalami  proses pengerasan pada pencampurannya dengan air ataupun larutan asam. Bahan baku pembuatan semen antara lain : clinker/terak semen sebanyak 70% - 95% (hasil olahan pembakaran batu kapur, pasir silika, pasir besi dan tanah liat), gypsum 5% dan material tambahan lain (batu kapur, pozzolan, abu terbang dan lain- lain). Seiiring dengan peningkatan pembangunan insfrastruktur yang menjadi fokus Pemerintah saat ini, maka kebutuhan bahan baku bangunan khususnya semen mengalami peningkatan. Peningkatan kebutuhan ini membuat perusahaan semen meningkatkan produksi yang pada akhirnya juga akan mengurangi cadangan batugamping yang ada di alam. Sumber daya geologi terdiri atas sumber daya mineral, sumber daya energi, sumber daya air, dan bentang alam. Batugamping sebagai salah satu bahan baku dominan pembuatan semen merupakan sumber daya mineral dan bentang alam yang harus dilindungi. Kementerian Energi dan Sumber Daya Alam sejak tahun 2012 telah menerbitkan aturan terkait pemanfaatan dan perlindungan Kawasan Bentang Alam Karst (Permen ESDM N0. 17 Tahun 2012). Perlindungan terhadap Kawasan Bentang Alam Karst bertujuan untuk melindungi fungsinya sebagai pengatur alami tata air dan keunikan/nilai ilmiah dalam pengembangan ilmu pengetahuan. Sedangkan upaya pemanfaatan sebagai bahan galian maupun bahan baku industri diatur deliniasinya, sehingga tidak menganggu zona konservasi. Diharapkan dengan keluarnya Permen ESDM N0. 17 Tahun 2012 dapat menjadi solusi bagi pemanfaatan dan perlindungan Kawasan Bentang Alam Karst di Indonesia. Kata kunci: Sumber daya geologi, Semen, Kawasan Bentang Alam Karst  ABSTRACTCement is powder made from lime and other materials used to make concrete, glue bricks or make walls (KBBI, 2008). Cement is a material that is hydraulic in nature, that is, a material which will undergo a hardening process in its mixing with water or acid solution. The raw materials for making cement include: clinker I slag of cement as much as 70% - 95% (the results of the combustion of limestone, silica sand, iron sand and clay), 5% gypsum and other additional materials (limestone, pozzolan, fly ash and etc). Along with the increase in infrastructure development which is the focus of the Government at this time, the need for building materials, especially cement, has increased. This increase in demand has made cement companies increase production, which in turn will also reduce the limestone reserves that exist in nature. Geological resources consist of mineral resources, energy resources, water resources, and landscapes.  Limestone  as  one  of  the  dominant  raw  materials  for  making  cement  is  a  mineral  and landscape resource that must be protected.The Ministry of Energy and Natural Resources since 2012 has issued regulations relating to the use and protection of Karst Landscape Areas (Permen ESDM No. 17 of 2012). Protection of the Karst Landscape Area aims to protect its function as a natural regulator of the water system and its unique I scientific value in the development of science. Meanwhile, the delineation of utilization efforts as minerals and industrial raw materials is regulated so that it does not disturb the conservation zone. Expected with the regulations (Permen  ESDM No. 17 of 2012) can be a solution for the use and protection of the Karst Landscape in Indonesia. Keywords: Geological resources, Cement, Karst Landscape Area

scholarly journals Implementation Of Permen Esdm No. 17/2012 As A Solution Between Mineral Businessesand Conservation Karst Zone In Indonesia

2019 ◽  
Vol 1 (1) ◽  
pp. 1-11
Author(s):  
Aris Dwi Nugroho ◽  
Tantan Hidayat ◽  
Muhammad Wachyudi Memed
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Water System ◽  
Mineral Resources ◽  
Silica Sand ◽  
Infrastructure Development ◽  
Karst Landscape ◽  
The Government ◽  
Materials Used ◽  
Scientific Value

Cement is powder made from lime and other materials used to make concrete, glue bricks or make walls (KBBI, 2008). Cement is a material that is hydraulic in nature, that is, a material which will undergo a hardening process in its mixing with water or acid solution. The raw materials for making cement include: clinker / slag of cement as much as 70% - 95% (the results of the combustion of limestone, silica sand, iron sand and clay), 5% gypsum and other additional materials (limestone, pozzolan, fly ash and etc). Along with the increase in infrastructure development which is the focus of the Government at this time, the need for building materials, especially cement, has increased. This increase in demand has made cement companies increase production, which in turn will also reduce the limestone reserves that exist in nature. Geological resources consist of mineral resources, energy resources, water resources, and landscapes.  Limestone  as  one  of  the  dominant  raw  materials  for  making  cement  is  a  mineral  and landscape resource that must be protected. The Ministry of Energy and Natural Resources since 2012 has issued regulations relating to the use and protection of Karst Landscape Areas (Permen ESDM No. 17 of2012). Protection of the Karst Landscape Area aims to protect its function as a natural regulator of the water system and its unique / scientific value in the development of science. Meanwhile, the delineation of utilization efforts as minerals and industrial raw materials is regulated so that it does not disturb the conservation zone. Expected with the regulations (Permen  ESDM No. 17 of 2012) can be a solution for the use and protection of the Karst Landscape in Indonesia.

scholarly journals Architectural ruins: geoculture of the anatomy of buildings as illustrated by Casa Ippolito, Malta

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Lino Bianco
Keyword(s):  
Material Culture ◽  
Building Materials ◽  
Raw Materials ◽  
Primary Source ◽  
Secondary Sources ◽  
Non Invasive ◽  
History Of ◽  
Aerial Vehicle ◽  
Materials Used ◽  
Building Physics

AbstractRuins are a statement on the building materials used and the construction method employed. Casa Ippolito, now in ruins, is typical of 17th-century Maltese aristocratic country residences. It represents an illustration of secondary or anthropogenic geodiversity. This paper scrutinises these ruins as a primary source in reconstructing the building’s architecture. The methodology involved on-site geographical surveying, including visual inspection and non-invasive tests, a geological survey of the local lithostratigraphy, and examination of notarial deeds and secondary sources to support findings about the building’s history as read from its ruins. An unmanned aerial vehicle was used to digitally record the parlous state of the architectural structure and karsten tubes were used to quantify the surface porosity of the limestone. The results are expressed from four perspectives. The anatomy of Casa Ippolito, as revealed in its ruins, provides a cross-section of its building history and shows two distinct phases in its construction. The tissue of Casa Ippolito—the building elements and materials—speaks of the knowledge of raw materials and their properties among the builders who worked on both phases. The architectural history of Casa Ippolito reveals how it supported its inhabitants’ wellbeing in terms of shelter, water and food. Finally, the ruins in their present state bring to the fore the site’s potential for cultural tourism. This case study aims to show that such ruins are not just geocultural remains of historical built fabric. They are open wounds in the built structure; they underpin the anatomy of the building and support insights into its former dynamics. Ruins offer an essay in material culture and building physics. Architectural ruins of masonry structures are anthropogenic discourse rendered in stone which facilitate not only the reconstruction of spaces but also places for human users; they are a statement on the wellbeing of humanity throughout history.

scholarly journals Characteristic of materials for the 3D printed building constructions by additive printing

2018 ◽  
Vol 222 ◽  
pp. 01013 ◽  
Author(s):  
Katarzyna Pacewicz ◽  
Anna Sobotka ◽  
Łukasz Gołek
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
New Technology ◽  
Setting Time ◽  
Three Dimensional ◽  
Construction Site ◽  
Printing Technology ◽  
Three Dimensional Printing ◽  
Materials Used ◽  
Dimensional Printing

Three dimensional printing is a promising new technology to erect construction objects. Around the world in every moment a new prototypes constructions are made by using this method. Three dimensional printing is taken into account as technology which can be used to print constructions in automated way on the Moon or Mars. The raw materials, which can be used with three dimensional printing have to fulfil basic requirements for those which are used in construction. That means that components of printing mortars are made from ingredients easily accessible in area nearby construction site and can be reusable. The cost of printing building objects due to that requirements is comparable to costs of traditional building, which are currently available. However additive techniques of printing needs a dedicated mortars for printer supplying. Characteristic for such mortars is: setting time, compressive strength, followability in the printing system, shape stability of every printed layer, controlling the hydration rate to ensure bonding with the subsequent layer, reusable capabilities, easily accessible raw materials, cost of such mixtures shouldn’t be too high in order to keep 3D printing competitive for traditional ways of building, mortar components should be recyclable and printing process should not influence negatively on an environment and people. All properties of printing mortars are determined by the device for additive application method. In this paper review of available materials used for three dimensional printing technology at construction site is presented. Presented materials were analysed in terms of requirements for building materials technology. Due to the lack of detailed information’s in available literature, regarding to the properties of raw materials, the results of this analysis may be used in the designing of new concrete mixtures for the use in three-dimensional printing technology for construction.

Research on Mixing Ratio of Waste Mud Brick

2013 ◽  
Vol 368-370 ◽  
pp. 1103-1106
Author(s):  
Hai Long Wu ◽  
Bing Zhang Huang ◽  
Bang Biao Huang ◽  
Ji Zhen Zhu ◽  
Xi Qiang Li ◽  
...  
Keyword(s):  
Building Materials ◽  
Heat Insulation ◽  
Raw Materials ◽  
Mineral Resources ◽  
Green Building ◽  
National Standards ◽  
Mixing Ratio ◽  
Waste Reuse ◽  
Green Building Materials ◽  
The Relationship

In order to achieve green building materials, energy conservation, waste reuse purposes. Use city sewage sludge as part of the raw materials for production of shale brick is studied by experiments adopted the different mixing ratio, find matching and the relationship between the compressive strength. Experimental results show that the shale powder to add quality percentage is 40% of dry sludge, formed a burning brick, brick of various performance accord with national standards, not only can save coal and mineral resources, improve the heat insulation brick, but also a lot of recycling of utilization of sludge.

scholarly journals THE OPPORTUNITIES AND BARRIERS OF BICYCLE EXPORT FROM BANGLADESH: A STUDY ON M & U CYCLES LTD, MEGHNA GROUP

2020 ◽  
Vol 8 (11) ◽  
pp. 42-68
Author(s):  
Md. Ali Ahosan Habib ◽  
Keyword(s):  
Migrant Workers ◽  
Foreign Currency ◽  
Raw Materials ◽  
Economic Recession ◽  
Sustainable Growth ◽  
Infrastructure Development ◽  
Negative Effects ◽  
The World ◽  
The Government ◽  
Foreign Exchanges

The cycle industry, M & U Cycles Ltd is a sister concern of Meghna group was established in 1982 in Gazipur, Dhaka. At Present 600 nos. or above worker works in this M & U Cycles industry. In The Last year from this M & U Cycles industry total 1, 30,000 Pcs bicycle assembled/produced and exported to different countries.The Product of Bicycle which exports from Bangladesh has great opportunities to earn foreign exchanges i.e. foreign currency can be used to develop this country. Now a Days, as per we know the total annual turnover of M & U Cycles Ltd only from export 30 million USD per year .Thats why this is great opportunities by exporting bicycle from Bangladesh.While my study for preparing this internship report it seems to me that particular sector (Bicycles) is very much facing the financial problem. The loan interest rate is too high for the sector to accomplish export processing, and also that sector is very much depended on import of raw materials. It seems to me that M & U Cycles Ltd, is always try to get their sustainable growth in the competitive market. In very recent time the government of Bangladesh has taken some significant decision to face the situation of economic recession. The governments takes a package of Tk 25000-30000 crore in order to priorities protection of the export oriented industries, agricultural growth, employment generation and social security to offset the negative effects of the global economic crisis. They also recommended creation of an export stabilization fund, retention and skill development for returning migrant workers, infrastructure development and simplification and streamliner of rules and procedures to help entrepreneur. According to IMF gradation, Bangladesh ranked as the 48th largest economy in the world in 2008. The economy has grown at the rate of 6.7%. The Bicycles industry sector must be played a very significant role there. In spite of economical recession of the world as well as in the country, M & U Cycles Ltd is one of the participators of earning foreign currency in Bangladesh. In the package are also measures like adoption of effective steps to provide necessary scope and facilities to workers and employees to perform social responsibility by management to fulfill compliance with standards set by the foreign buyers, reducing import dependence through ensuring supply of quality local raw materials in production of Bicycle exports.

scholarly journals DIFFERENTIALS IN HOUSING QUALITY IN LAGOS PERIPHERAL SETTLEMENTS

2019 ◽  
Vol 26 (1) ◽  
pp. 12-23
Author(s):  
Adedire Funmilayo M ◽  
Adegbile Michael
Keyword(s):  
State Government ◽  
Building Materials ◽  
Housing Quality ◽  
Primary Data ◽  
Cluster Sampling ◽  
Infrastructure Development ◽  
Urban Settlements ◽  
Balanced Distribution ◽  
Socioeconomic Composition ◽  
Materials Used

Housing quality differs within neighbourhoods in Lagos peripheral settlements, due to internal and external factors. This study examines differentials in housing quality in Lagos’s peripheral settlements and the factors responsible. Primary data was sourced through structured questionnaires, interviews and observation schedules administered through field survey in study areas. Two stage cluster sampling techniques were adopted for determining the sample size. Firstly, using a purposive sampling, to reduce cost and avoid repetitions, clusters of sixteen and eighteen settlements in Ibeju-Lekki and Ikorodu peri-urban settlements were selected respectively. Secondly, three hundred seventy and three hundred eighty four housing units were selected randomly from the selected housing clusters in Ibeju-Lekki and Ikorodu peripheral settlements respectively. Data analysis was done using statistical analysis to generate frequencies and percentages of responses on socio-economic profile, access to services and households’ perception on neighbourhood quality, internal dwelling quality, external dwelling quality and building materials in the study area. Data processing and analysis for this study were carried out using the Statistical Package for Social Sciences (SPSS) for analysis of the quantitative data. Findings show differentials in the housing developments in the study areas due to various socioeconomic attributes, building materials used and the state government policy on infrastructure development. It is recommended that a data base of demography and the socioeconomic composition of the residents is needed, as this may help to know the infrastructural demand and also, to create balanced distribution of services in the study area in order to eliminate disparities. Keywords: Housing quality; neighbourhood quality; locational quality; infrastructural services; differentials; periurban settlements.

On the Issue of Reducing the Energy Intensity of the Silicate Composites Production with the Unconventional Aluminosilicate Raw Materials Use

2019 ◽  
Vol 974 ◽  
pp. 20-25 ◽  
Author(s):  
A.A. Volodchenko ◽  
Valery S. Lesovik ◽  
L.K. Zagorodnjuk ◽  
E.S. Glagolev
Keyword(s):  
Energy Saving ◽  
Building Materials ◽  
Energy Intensity ◽  
High Pressures ◽  
Raw Materials ◽  
High Reactivity ◽  
Raw Material ◽  
Green Technologies ◽  
Materials Used ◽  
Clay Rocks

The energy intensity of production of the most common wall materials in Russia is significantly higher than their foreign counterparts. The urgent task is to reduce the energy intensity of the production of building materials, to develop and introduce energy-saving nature-like technologies for the production of building materials, which corresponds to modern trends in the development of "green" technologies. It is possible to reduce the energy intensity of the production of silicate materials due to the transition from traditional raw materials to the use of unconventional aluminosilicate raw materials of various genesis, in particular, clay rocks of the unfinished stage of mineral formation. In the course of the research, the possibility of the synthesis of the new growth in the system “aluminosilicate raw material – calcium hydroxide – water” under the conditions of hydrothermal treatment was shown. Due to the high reactivity of the raw materials used, under the conditions of hydrothermal processing, the synthesis of tumors occurs not only at high pressures and temperatures, but also at temperatures up to 100 °C. This will allow to obtain efficient hollow-walled wall building materials using energy-saving technology.

Study on the Preparation Process of Corn Straw-Pumice Composite Concrete

2013 ◽  
Vol 357-360 ◽  
pp. 955-958
Author(s):  
Jian Suo Ma ◽  
Jing Sun ◽  
Huan Qin Cai ◽  
Run Shan Bai
Keyword(s):  
Water Absorption ◽  
Building Materials ◽  
Raw Materials ◽  
Northern China ◽  
Preparation Process ◽  
Corn Straw ◽  
Molding Process ◽  
Main Crop ◽  
Large Water ◽  
Materials Used

In order to prepare energy saving and environmental protection building materials, a new kind of concrete was made by the combination of corn stalks which is the main crop in northern China, natural pumice resources and cement. Corn stalks and pumice are all lightweight material with open pores and large water absorption; therefore they must be pretreated before preparing concrete by blocking holes to reduce the amount of grout. The raw materials used in the experiments are lightweight materials; it is advisable to adopt the pressure vibration molding process to reduce aggregate stratification.

scholarly journals The Effect of Temperature and Composition to the Rheological Properties of Asphalt Pavements

2008 ◽  
Vol 589 ◽  
pp. 85-91 ◽  
Author(s):  
László A. Gömze ◽  
Róbert Géber ◽  
Judit Csányi Tamásné
Keyword(s):  
Rheological Properties ◽  
Mechanical Model ◽  
Building Materials ◽  
Raw Materials ◽  
Asphalt Mixtures ◽  
Asphalt Pavements ◽  
Effect Of Temperature ◽  
Mineral Raw Materials ◽  
Low Viscosity ◽  
The Government

Ceramics, concretes and asphalt-mixtures are the most popular building materials in Hungary, because of the highway programme of the government. In spite of their large popularity, some of the mechanical properties of ceramics, concretes and asphalts are not investigated enough till today. Particularly, there is no mechanical model usable to understand and explain the rheological behaviours of these materials with different compositions of mineral raw materials. It is well known, that the viscosity of viscous materials, viscoelastic materials, and viscoplastic materials dynamically decreases, as the temperature increases. The decrease of viscosity by leaps and bounds could be extremely dangerous in case of asphalt pavements in the range of 55 – 75 °C, due to the crossing of cars on the low viscosity pavements which suffer inelastic deformation, as a result. Using a Rheo-tribometer instrument developed by L. A. Gömze and others, the authors have investigated and tested asphalt mixtures with different composition of mineral raw materials, and would like to reveal and review the dependence of the rheological properties of these pavements against the temperature, and the intensity of the dependence.

scholarly journals New data on the resources of sand and grave aggregates for road investment and construction in Poland

2016 ◽  
Vol 32 (1) ◽  
pp. 103-118
Author(s):  
Olimpia Kozłowska ◽  
Marta Sołomacha ◽  
Iwona Walentek
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Raw Materials ◽  
Mineral Resources ◽  
Raw Material ◽  
Infrastructure Development ◽  
The European Union ◽  
Natural Sand ◽  
Business Entities ◽  
Economic Criteria

Abstract Upon accession to the European Union, economic growth became accelerated in Poland, resulting in a boost in infrastructure development. This led to a marked growth in demand for natural sand-gravel aggregates and other raw materials used in road construction. To meet the demand for suitable raw materials, the Ministry of Environment commissioned the Polish Geological Institute–National Research Institute to start a re-evaluation of earlier raw material prognoses assessments in order to delineate prognostic areas for development of new resources. The re-evaluation has been conducted by the PGI-NRI within the frame of the compilation of the Geoenvironmental Map of Poland at the scale of 1:50 000, making it possible to identify potential conflicts with land-use plans as well as already established NATURA 2000 and other natural heritage conservation designations and more or less continuous built up areas which preclude or at least impede exploitation of mineral raw materials. The analyses also covered economic factors related to costs of transport and the current economic criteria of mineral resources and reserves. At the first stage of the project (between 2008 and 2012) the re-evaluation was conducted in 432 prognostic areas with a total area of over 33 thousands of hectares. According to the current economic criteria of sand-gravel aggregate deposits there were estimated resources of over 5 mld tons, of which around 3 mld tons of aggregates were suitable for road investments and over 2 mld tons of aggregates were suitable for construction. The work has made it possible to re-evaluate the occurrences of natural aggregates in the vicinities of urban centers and along corridors delineated for selected planned motorways and expressways as well as those under construction. The study was compiled especially for business entities involved in construction projects or the exploitation of mineral resources and state administrative units as a tool to support land-use planning and management at the level of individual communes, counties (poviats) and voivodeships. Re-evaluated prognostic areas data are gathered in spatial database and are available through WMS service on the Geoenvironmental Map of Poland portal (emgsp.pgi.gov.pl).

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