نتایج جستجو برای: geopolymer cement
تعداد نتایج: 29237 فیلتر نتایج به سال:
The demand for cement is increasing each year, but the manufacture of 1 tonne produces an equal number carbondioxide (CO2) gas which directly related to increase in global warming. Therefore, we need a substitute material, namely geopolymer. This material has relatively superior properties compared cement. However, one drawbacks geopolymers that production costs are more expensive pre-cast beca...
Opioid therapy for chronic pain generally use controlled release formulations to deliver analgesic drugs around-the-clock. Controlled release dosage forms can enlarge the therapeutic effect by controlling the rate and site of release. However, with high drug content, opioid formulations are easily targeted for non-medical use. With the increasing concern of opioid abuse, tamperresistance become...
This research studies the utilization of alumina waste and silica waste for geopolymer production. Alumina waste was obtained from aluminium thermal metallurgy industry, silica waste was obtained from silicone recycle industry in Thailand. This present study aimed at investigating the basic physical and chemical properties of waste materials and also the optimal proportion in geopolymer product...
This paper reports the results of an experimental work conducted to investigate the effect of curing conditions on the compressive strength of self-compacting geopolymer concrete prepared by using fly ash as base material and combination of sodium hydroxide and sodium silicate as alkaline activator. The experiments were conducted by varying the curing time and curing temperature in the range of...
در این تحقیق ژئوپلیمر به کمک مواد اولیه متاکائولن و محلول های قلیایی هیدروکسید پتاسیم و سیلیکات سدیم سنتز شد و اثر پارامترهای میزان آب، غلظت هیدروکسید پتاسیم و اندازه ذرات کائولن بر روی خواص فیزیکی و مکانیکی ژئوپلیمر تولیدی با استفاده از طراحی آزمایش به روش ccd مورد بررسی قرار گرفت. این پارامتر ها در دو سطح بالا و پایین تعیین گردید وپس از تجزیه و تحلیل داده ها به کمک نرم افزار dx8، مقادیر بهینه...
Geopolymer concrete is preferred over OPC due to its use of energy waste such as fly ash, making it more sustainable and energy-efficient. However, limited research has been done on seismic characterization in confined masonry, highlighting a gap earthquake-resistant structures. Our study compares the performance alkali-activated fly-ash-based geopolymer bare frame masonry wall panels with conv...
In this research, the ordinary Portland cement (OPC) was mixed with metakaolin, activator, hydrogen peroxide, and olive oil to synthesize hybrid geopolymer foam. The obtained results indicated internal heat release throughout OPC hydration in combination. employed as a calcium source geopolymers (Geopolymer-Portland (HGPF)) explore curing process of at ambient temperature. functionality compone...
Summary A fundamental understanding of the mechanical properties zonal isolation materials is important for predicting well integrity during operation conditions. Conventionally, are tested at ambient temperature using uniaxial testing. This study examined alternative such as rock-based geopolymer, thermosetting resin, and an industrial class expansive cement under realistic conditions by triax...
Low carbon or near-zero concrete technology is in line with the pillars of sustainable development, where industrial waste low-carbon binders can reduce eliminate consumption Portland cement and natural resources, leading to less environmental pollution. This work presents an experimental study on comparison between alkali-activated materials (also recognized as geopolymers) a traditional cemen...
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