Results 21 to 30 of about 399,081 (334)

Old-Age Security Abroad: The Background of Titles II and VIII of the Social Security Act [PDF]

open access: yes, 1936
This research is an attempt to create a comprehensive assessment framework for identifying and assessing potential improvement options of cement production systems. From an environmental systems analysis perspective, this study provides both an empirical
Armstrong, Barbara Nachtries
core   +2 more sources

The basic construction materials industry and today’s vast housing shortage

open access: yesMateriales de Construccion, 2008
This paper documents some of the aspects of the major challenge facing world-wide building: humanity's daunting shortage of basic housing, monographically focusing on what this means for the basic building materials industry. These needs have created the
J. Salas, I. Oteiza
doaj   +1 more source

Soluble pozzolanic materials from coal bottom ash as cement replacement material [PDF]

open access: yes, 2021
Nowadays, intensive research in production of highly reactive pozzolanic materials from industrial waste to replace cement is crucial. This action expected to increase industrial waste recycling rate and at the same time reduce extraction of non ...
Abd Wahab, Azrina   +3 more
core   +1 more source

Alternative Usage of Raw Material and Fuel in Cement Plants: Case Study

open access: yesDoğal Afetler ve Çevre Dergisi, 2017
Turkish Cement Sector uses industrial and domestic wastes as alternative fuels or raw materials in licensed facilities. Increasing use of alternative fuels and raw materials is very important in terms of eliminating environmental pollution, saving ...
Şeyma Ordu, Ebru Öztürk
doaj   +1 more source

Multi-criteria decision analysis to assess the environmental and economic performance of using recycled gypsum cement and recycled aggregate to produce concrete: the case of Catalonia (Spain) [PDF]

open access: yes, 2018
The production of virgin raw materials used in construction and the generation of construction and demolition waste (CDW) are key environmental issues in the construction industry.
Calderón Valdiviezo, Lucrecia Janneth   +3 more
core   +2 more sources

Cement production by cement-bonded wood particleboard wastes

open access: yesAdvances in Cement Research, 2015
To improve the sustainability of cement and concrete production, there is an increasing trend towards using industrial wastes throughout their production processes. The aim is to find new resources that can be used in any step of cement and concrete production and to find solutions to many problems related to the disposal of wastes.
Yilmaz, Mustafa   +2 more
openaire   +2 more sources

Günümüz Teknolojileri Çerçevesinde Çimento Dünyasındaki Gelişmelerin Araştırılması

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2021
Bu çalışmada insanoğlunun her geçen gün artarak ilerleyen hayat standartlarıyla beraber artan altyapı, üstyapı ve konut gibi ihtiyaçlarına cevap veren başlıca yapı malzemesi olan çimento dünyası ve çimento üretimindeki gelişmeler detaylı olarak ...
Nusret Bozkurt, Nursima Sayın
doaj   +1 more source

An investigation into current production challenges facing the Libyan cement industry and the need for innovative Total Productive Maintenance (TPM) strategy [PDF]

open access: yes, 2011
Purpose - The purpose of this paper is to investigate maintenance and production problems in the cement industry in Libya with particular emphasis on future implementation of Total Productive Maintenance (TPM).
Al-Habaibeh, A, Graisa, M
core   +1 more source

The properties of recycled rubber from waste tires in the production of cement composites [PDF]

open access: yes, 2020
This article presents the results of a study dealing with the use of a combination of recycled rubber from waste tires as a 100% substitute in the production of cement composites.
Charvát, Jakub   +5 more
core   +1 more source

Evaluation of optimization techniques for predicting exergy efficiency of the cement raw meal production process

open access: yesCogent Engineering, 2021
In cement production, raw meal preparation and energy consumption are extremely important for cost reduction. However, few studies have examined the relationship between operational process parameters and exergy efficiency.
Anthony I. Okoji   +2 more
doaj   +1 more source

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