TWI307335B - A method of recycling the fly ash in foundry industry - Google Patents

A method of recycling the fly ash in foundry industry Download PDF

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Publication number
TWI307335B
TWI307335B TW94126504A TW94126504A TWI307335B TW I307335 B TWI307335 B TW I307335B TW 94126504 A TW94126504 A TW 94126504A TW 94126504 A TW94126504 A TW 94126504A TW I307335 B TWI307335 B TW I307335B
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Taiwan
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dust
ash
sand system
sand
water glass
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TW94126504A
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Chinese (zh)
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TW200706510A (en
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Wei Jer Wang
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Lu Tung Hsuan
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Description

13〇7335 九、發明說明: 【發明所屬之技術領域】 本發明係有關於一種鑄造業集塵灰資源化方法’尤指 〜種運用鑄造業廢棄之集塵灰物質作為真有強度性質之 再利用礦物摻料,或運用於工程回填與道路基礎之混凝土 的魬成,不但可解決大量集塵灰的環保問題,又能減少昂 貴原料(摻料)的用量之首先發明應用者》 【先前技術】13〇7335 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a method for recycling dust ash in a foundry industry, particularly to the use of dust ash materials discarded in the foundry industry as a true strength property. Mineral admixture, or concrete used in engineering backfilling and road foundation, can not only solve the environmental problems of a large number of dust collection ash, but also reduce the amount of expensive raw materials (added materials).

按,於鑄造業之鑄造過程中除會產生廢鑄砂之外,亦 會於產生集塵灰物質,而集塵灰係指金屬基本工業、金屬 製品製造業或機械設備製造修配業在鑄造製程以及金屬 燦煉過程中集塵設備所蒐集之粉末物質。 目前鑄造業集塵灰皆以掩埋方式處理,其處理費用高 且掩埋場容量受限,近年來,亦多有掩埋場因容量飽和而 限制一般事業廢棄物進場。因此,鑄造業集塵灰資源化更 形重要。鑄造業集塵灰之分類係依其使用模砂種類來區 分,由上可知,鑄造業集塵灰之物化性質及無害性與廢鱗 砂相似。但在資源化實際應用上,因其過細的顆粒,用於 混凝土中取代細骨材時,對混凝土之工作性、力學強度、 孔隙結構仍有不利之影響,有其使用上之限制,故集塵灰 之資源化遂徑難覓。 然,本發明人先前針對應用鑄造業廢鑄砂於可控制性 低強度回填材料中的研究,已經申請發明專利而獲准為證 書號第1227220號「應用於可控制性低強度回填材料之骨 材及其處理方法」發明案,其主要以呋喃砂系統、水坡璃 义系統、濕模砂系統、陶竞殼模砂及樹脂砂等數種廢禱砂 5 I3〇7335 之任種,或任二種,或任三種、或任四種或五種等之組 成,經過磁選、篩分及破碎三道特定製程,將廢鑄砂製成 4. 75麵以下之細粒料,摒除粗粒料、鐵塊等雜質對單軸抗 髮強度及流變行為的影響,以產生強度範圍易控制及流動 陡較佳之 CLSM(Controlled Low Strength Materials,簡 稱 CLSM)。According to the casting process in the foundry industry, in addition to the waste cast sand, dust ash will also be produced. The dust ash refers to the metal basic industry, metal products manufacturing or mechanical equipment manufacturing repair industry in the casting process. And the powder material collected by the dust collecting equipment during the metal canning process. At present, the dust collection ash in the foundry industry is treated by landfill, and the treatment cost is high and the capacity of the landfill is limited. In recent years, many landfills have restricted the entry of general business waste due to capacity saturation. Therefore, the recycling of dust collection ash in the foundry industry is more important. The classification of dust collection in the foundry industry is based on the type of sand used. From the above, the physicochemical properties and harmlessness of the dust from the foundry industry are similar to those of waste sand. However, in the practical application of resources, because of its fine particles, when it is used to replace fine aggregates in concrete, it still has an adverse effect on the workability, mechanical strength and pore structure of concrete, and there are restrictions on its use. The recycling of dust and dust is difficult. However, the inventors previously applied for the application of the foundry waste sand in the controllable low-strength backfill material, and have applied for the invention patent and obtained the certificate No. 1227220 "Applying to the controllable low-intensity backfill material. And its treatment method" invention, which mainly uses various kinds of waste prayer sand 5 I3〇7335, such as furan sand system, water slope glass system, wet mold sand system, pottery shell mold sand and resin sand, or Two kinds, or any three, or any four or five kinds of components, after three specific processes of magnetic separation, sieving and crushing, the waste cast sand is made into fine particles of 4.75 faces or less, and coarse aggregates are removed. The influence of impurities such as iron blocks on the uniaxial strength and rheological behavior of the slab, to produce CLSM (Controlled Low Strength Materials, CLSM for short) with easy control of the strength range and steep flow.

所以本發明人再度為鑄造業集塵灰可資源化之途徑 作一分析研究,而於分析研究的過程中,得知一般水泥混 凝土中通常會加入摻料以強化混凝土,而「摻料」根據美 =混凝土學會ACIC125定義為「混凝土組成成分内除水、 月材和水以外的成分」,這些水以外的成分包括了 :礦物 摻料、化學摻料、輸氣劑、纖維等材料。而一般業界所使 用的卜作嵐材料即為礦物摻料的一種。 而卜作嵐材料中所含氧化石夕及氧化鋁能與水泥水化 生成之氫氧化鈣,或外加鹼質物產生緩慢卜作嵐水化反 應,而有類似水泥水化產物之膠結性反應之任何材料均屬 之。而在使用卜作嵐材料方面,天然的卜作嵐材料在義大 利至今仍大量使用。根據統計資料顯示其水泥產量有40 %是使用摻加25%火山灰的天然卜作嵐材料製成的。1971 年已在挪威開始使用矽灰,1863年歐洲開始生產高爐石水 匕而1972及1982分別在加拿大及美國開始使用高爐石 水泥’而1948年美國在建造Hungry Horse水場時就開始 使用飛灰。矽灰、高爐石粉及飛灰均為工業副產品,而掺 加於混凝土中可取代水泥用量不但較為經濟,而且其所含 石夕酸鹽較多,易與水泥水化的生成物氫氧化鈣及水泥中所 含驗性材料反應形成緻密性的矽酸鈣水化物及填充微結@ 6 1307335 構中之孔隙量能達到強度高及耐久 用已漸趨普遍。美國惡凝土學制因此其使 明定必須填加這種礦物摻料以獲得優質=昆2定新規範 加卜作歲材料的優點為·· 犯 ’因為添 (1) 可取代部分水泥’降低成本。 (2) 提高工作度,降低水化熱,可防止裂縫。 (3) 改善棚錢域f,提高贿㈣。 但因石夕灰、祕石粉及飛灰等Therefore, the inventor once again conducted an analysis and research on the way in which the dust collection ash of the foundry industry can be resourced. In the course of analysis and research, it is known that the general cement concrete is usually added with the admixture to strengthen the concrete, and the "mixing" is based on The concrete = concrete society ACIC125 is defined as "components other than water, moon and water in the concrete composition". The components other than water include: mineral admixtures, chemical admixtures, gas carriers, fibers and other materials. The material used in the general industry is a kind of mineral admixture. However, the oxidized stone and alumina contained in the material of the sputum can produce a slow hydration reaction with the calcium hydroxide formed by the hydration of the cement, or the addition of the alkali substance, and any material having a cementitious reaction similar to the cement hydration product belongs to It. In terms of the use of Bu 岚 materials, natural 岚 岚 materials are still widely used in Italy. According to statistics, 40% of its cement production is made from natural materials made from 25% volcanic ash. In 1971, ash was started in Norway. In 1863, blast furnace stone was started in Europe. In 1972 and 1982, blast furnace stone cement was used in Canada and the United States respectively. In 1948, the United States began to use fly ash when building the Hungry Horse water field. . Ash, blast furnace stone and fly ash are industrial by-products, and the addition of cement to concrete can not only replace the amount of cement, but also contains more calcium sulphate, which is easy to be formed with cement hydrated calcium hydroxide. Calcium citrate hydrate and compacted micro-junction formed by the reaction of the materials contained in the cement @ 6 1307335 The amount of pores in the structure can reach high strength and durability has become increasingly common. The American system of eccentric soils therefore makes it necessary to add this mineral admixture to obtain high quality. The advantage of the new standard for the addition of the new material is that it is a crime because it can replace the part of the cement. . (2) Improve work efficiency, reduce hydration heat, and prevent cracks. (3) Improve the money field in the shed and raise the bribe (4). But because of Shi Xi ash, secret stone powder and fly ash, etc.

品,其均屬價高之添加摻料二為工業副產 築或道路工程之費用居t應在成本上,以致建 可運用於上述業界中之二,另卜作嵐材料之添加除了 物掺料’所以卜作崽材料並;侷會運用到礦 J =之成本降低’且同時可:=原=此 ” 礦!7摻料之行業所應積極研究的-門課題。 專業㈣r眘本發明人秉持多年從事相關行業的研究及 驗和研究開發-種可運用廢棄的鎊造業集 ^貝,作為確物摻料,同時運用於混凝土或可控制性低 ^回厂材料中均具有抗壓強度及流動性佳之功能,其可 改善前述之缺失者。 【發明内容】 本發明4有關於一種鑄造業集塵灰資源化方法,主要 糸以禱造業所分設之濕模砂、呋喃砂、殼模砂及水玻璃砂 產製所收集之集塵灰,其任一種或數種集塵灰依比 仏匕°級成’具二氧化石夕(Si〇2)、三氧化二鋁(Al2〇3)及氧 化鐵(FeO)成份之礦物摻料性質,以取代舊有高價位之卜 作鼠材料的資源回收方法;同時,以該集塵灰資源化方 1307335 政又其所揭露之具體構造,不僅未曾見 尹,亦未曾公開於申請前,誠已完全符合專 =爰依法提出發明專利 准專利,則實感德便。 “月心 諸於同類產品 利法之規定與 予審查,並賜Products, which are all high-priced additions, the second is the cost of industrial by-product construction or road engineering. The cost should be applied to the second of the above-mentioned industries, and the addition of materials to the addition of materials. Therefore, the material is used as the material; the bureau will apply to the mine J = the cost reduction 'and at the same time: = original = this" mine! 7 industry of the industry should actively research - the door project. Professional (four) r cautious inventor uphold For many years, he has been engaged in the research, inspection and research and development of related industries. He can use the waste of the pound-making industry, which is used as a material, and is used in concrete or low-controllable materials. The invention has the function of good fluidity, which can improve the aforementioned missing ones. [Invention] The present invention relates to a method for recycling dust ash in the foundry industry, mainly in the form of wet sand, furan sand and shells which are divided into prayer industry. The dust collection ash collected by the molding sand and water glass sand production, any one or several kinds of dust collection ash are classified into 'Si dioxide dioxide (Si〇2), Al2O3 (Al2〇) 3) and the mineral admixture properties of iron oxide (FeO) components to replace There is a method for recycling resources of high-priced rodent materials. At the same time, the specific structure disclosed by the collection of dust and ash resources is not only seen before, but also has not been disclosed before the application. = 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 提出 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 月 月

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Claims (1)

1307335 公告本十、申請專利範圍: 12.1 9 年月日修正本 1. 一種鑄造業集塵灰資源化方法,其係以濕模砂系統、呋 喃砂系統、殼模砂系統及水玻璃系統等四種不同造模原 料系統之鑄造業集塵灰作為具抗壓強度高及活化性佳 之礦物摻料者。1307335 Announcement 10, the scope of application for patents: 12.1 9-day revision of the law 1. A method for the collection of dust in the foundry industry, which is based on wet sand system, furan sand system, shell sand system and water glass system. The dust collection ash of the foundry industry of different molding material systems is used as a mineral admixer with high compressive strength and good activation. 2. 如申請專利第1項所述鑄造業集塵灰資源化方法,其 中,以濕模砂系統、呋喃砂系統、殼模砂系統及水玻璃 系統等四種系統所收集之集塵灰任一種,作為具抗壓強 度高及活化性佳之礦物摻料者。 3. 如申請專利第1項所述鑄造業集塵灰資源化方法,其 中,以濕模砂系統、呋喃砂系統、殼模砂系統及水玻璃 系統等四種系統所收集之集塵灰任二種,作為具抗壓強 度高及活化性佳之礦物摻料者。2. For the method of resource collection of dust in the foundry industry as described in the first application of the patent, the dust collection ash collected by the four systems of wet sand system, furan sand system, shell mold sand system and water glass system One is as a mineral admixer with high compressive strength and good activating properties. 3. For the method of resource collection of dust in the foundry industry as described in the first paragraph of the patent application, the dust collection ash collected by the four systems of wet sand system, furan sand system, shell mold sand system and water glass system Two kinds, as mineral admixtures with high compressive strength and good activation. 4. 如申請專利第1項所述鑄造業集塵灰資源化方法,其 中,以濕模砂系統、呋喃砂系統、殼模砂系統及水玻璃 系統等四種系統所收集之集塵灰任三種,作為具抗壓強 度高及活化性佳之礦物摻料者。 5. 如申請專利第1項所述鑄造業集塵灰資源化方法,其 中,以濕模砂系統、呋喃砂系統、殼模砂系統及水玻璃 系統等四種系統所收集之集塵灰,以濕模砂系統集塵灰 2:呋喃砂系統集塵灰3:殼模砂系統集塵灰1:水玻璃系 統集塵灰1之比例混合成之混合集塵灰作為具抗壓強度 高及活化性佳之礦物摻料。 6. —種鑄造業集塵灰資源化方法應用在混凝土製作,其混 凝土主要由水、水泥、骨材及摻料所組成,其中: 16 1307335 摻料含量由0〜50%,且為濕模砂系統集塵灰、呋喃 砂系統、殼模砂系統及水玻璃系統等四種系統集塵灰, 作為混凝土之拌舍掺料,以有效提高材料之流動性,及 有效控制此材料所需的單軸抗壓強度範圍。4. For example, the method for recycling dust in the foundry industry mentioned in the first paragraph of the patent application, wherein the dust collection ash collected by the four systems of wet sand system, furan sand system, shell mold sand system and water glass system Three kinds of mineral admixtures with high compressive strength and good activation. 5. The method for recycling dust in the foundry industry as described in claim 1, wherein the dust collected by the wet sand system, the furan sand system, the shell sand system and the water glass system, In the wet sand system, the dust collection ash 2: the dust sand ash system: the dust collection ash system of the shell mold system: the dust collection ash of the water glass system is mixed to form the mixed dust ash as the high compressive strength and Mineral abundance with good activating properties. 6. A method for the collection of dust in the foundry industry is applied to concrete. The concrete is mainly composed of water, cement, aggregate and admixture. Among them: 16 1307335 The content of the admixture is from 0 to 50%, and it is a wet mold. The dust collection ash, the furan sand system, the shell mold sand system and the water glass system of the sand system are used as the concrete mixing material to effectively improve the fluidity of the material and effectively control the material. Uniaxial compressive strength range. 7. 如申請專利第6項所述鑄造業集塵灰資源化方法應用在 混喊土製作,其中,以濕模砂系統、呋喃砂系統、殼模 砂系統及水玻璃系統等四種系統所收集之集塵灰任一 種’作為具抗壓強度高及活化性佳之礦物摻料者。 8. 如申請專利第6項所述鑄造業集塵灰資源化方法應用在 混凝土製作,其中,以濕模砂系統、呋喃砂系統、殼模 砂系統及水玻璃系統等四種系統所收集之集塵灰任二 種’作為具抗壓強度高及活化性佳之礦物摻料者。 9. 如申請專利第6項所述鑄造業集塵灰資源化方法應用在 混凝土製作,其中,以濕模砂系統、呋喃砂系統、殼模 砂系統及水玻璃系統等四種系統所收集之集塵灰任三 種,作為具抗壓強度高及活化性佳之礦物摻料者。 10. 如申清專利第6項所述鑄造業集塵灰資源化方法應用 在混凝土製作,其中,以濕模砂系統、咬喃砂系統、 殼杈砂系統及水破璃系統等四種系統所收集之集塵 灰,以濕模砂系統集塵灰2:吱喃砂系統集塵灰3··殼模 砂系統集塵灰1:水玻璃系統集塵灰!之比例混合成之 混合集塵灰作為具抗壓強度高及活化性佳之礦物換 料。 ,/ 11. -種鑄造錢塵灰資源化方法應用在可㈣性低 回填材料製作’其可控制性㈣度回填材料主要由 水、水泥、骨材及摻料所組成,其中: 17 1307335 摻料含量由〇〜50%,且為濕模砂系統集塵灰、咬 喃砂系統、殼模砂系統及水玻璃系统等四種系統集塵 灰’作為可控制性低強度回填材料之拌合摻料,以有 效提高材料之流動性,及有效控制此材料所需的單軸 抗壓強度範圍。 種·k業集塵灰資源化方法應用在可控制性低強度 回填材料製作,其可控制性低強度回填材料主要= 水、水泥、骨材及摻料所組成,其中: • 該骨材以濕模砂系統、呋喃砂系統、殼模砂系統、 水玻璃系統等廢鑄砂經收集處理後調配組成; 該摻料含量由〇〜50%,且為濕模砂系統集塵灰、 夫南砂系統、殼模砂系統及水玻璃系統等四種系統集 f灰,作為可控制性低強度回填材料之拌合摻料,同 =對應配合鑄造廢鑄砂骨材之添加成為以有效提高材 料之流動性,及有效控制此材料所需的單軸抗壓強度 範圍。 _ 13’ ^料利第11或第12項所料造錢塵灰資源化方 ^應用在可控制性低強度回填材料製作,其中,以濕 极砂系統、呋喃砂系統、殼模砂系統及水玻璃系統等 系、、先所收集之集塵灰任一種,作為具抗壓強度高 C佳之礦物掺料者。 法2 π專利第11或第12項所述鑄造業集塵灰資源化方 模二用在可控制性低強度回填材料製作,其中,以濕 四種系統、呋喃砂系統、殼模砂系統及水玻璃系統等 及系統所收集之集塵灰任二種,作為具抗壓強度高 ’化性佳之礦物摻料者。 18 1307335 15. 如申請專利第η或第12項所述鑄造業集塵灰資源化方 法應用在可控制性低強度回填材料製作,其中,以濕 模砂系統、呋喃砂系統、殼模砂系統及水玻璃系統等 四種系統所收集之集塵灰任三種’作為具抗壓強度高 及活化性佳之礦物摻料者。 16. 如申料利第u或第12項所料造業集塵灰資源化 方法應用在可控制性低強度回填材料製作製作,其 中二以j模砂純"夫味砂系統、殼模砂系統及水玻 璃系統等四種系統所收集之集塵灰,以濕模砂系統集 塵灰2.吱喃砂'系統集塵灰3:殼模砂系統集塵灰1:水 ^系統集塵灰1之比例混合成之混合集塵灰作為具 抗壓強度高及活化性佳之礦物摻料。7. The application method of the dust collection ash in the foundry industry as described in the sixth application of the patent application is applied in the production of mixed soil, in which four systems are used: wet sand system, furan sand system, shell mold sand system and water glass system. Any of the collected dust ash is used as a mineral admixture with high compressive strength and good activation. 8. The method for recycling dust in the foundry industry as described in the sixth application of the patent application is applied to concrete production, which is collected by four systems: wet sand system, furan sand system, shell sand system and water glass system. There are two types of dust ash as 'minerals with high compressive strength and good activation. 9. The method for recycling dust in the foundry industry as described in the sixth application of the patent application is applied to concrete production, which is collected by four systems: wet sand system, furan sand system, shell sand system and water glass system. There are three kinds of dust ash, which are used as mineral admixtures with high compressive strength and good activation. 10. The application method of the dust collection ash in the foundry industry as described in the sixth paragraph of Shenqing Patent is applied to concrete production, among which four systems are wet sand system, biting sand system, shell sand system and water glass system. Collected dust ash, dust ash system with wet sand system 2: smoldering sand system dust ash 3··shell sand system dust ash 1: water glass system dust ash! The mixed dust ash is used as a mineral rework with high compressive strength and good activating properties. , / 11. - The method of casting money dust ash is applied in the production of (four) low backfill materials. Its controllability (four) degree backfill material is mainly composed of water, cement, aggregate and admixture, of which: 17 1307335 The content of the material is 〇~50%, and it is the mixing dust ash of the wet sand system, such as dust ash, biting sand system, shell mold sand system and water glass system, as the controllable low-strength backfill material. The material is spiked to effectively increase the fluidity of the material and effectively control the range of uniaxial compressive strength required for the material. The k-dust ash resource utilization method is applied to the controllable low-strength backfill material, and the controllable low-strength backfill material is mainly composed of water, cement, aggregate and admixture, wherein: • the aggregate is The waste molding sand such as wet sand system, furan sand system, shell mold sand system and water glass system is collected and processed to prepare the composition; the content of the admixture is 〇~50%, and it is the dust collection ash of the wet sand system, Funan sand Four systems, such as system, shell mold sand system and water glass system, are used for the mixing of f-ash as a controllable low-strength backfill material, and the addition of corresponding cast casting waste sand aggregates is effective to improve the material. Fluidity, and the range of uniaxial compressive strength required to effectively control this material. _ 13' ^ material profit 11th or 12th of the money-making dust ash resource ^ application in the control of low-intensity backfill materials, including wet sand system, furan sand system, shell mold sand system and Water glass system, etc., any of the collected dust ash collected first, as a mineral admixer with high compressive strength. The method for collecting dust ash in the foundry industry described in Item 11 or Item 12 of the π patent is used in the controllable low-strength backfill material, wherein the wet four systems, the furan sand system, the shell mold sand system and Water glass systems and other systems collect dust ash, which is used as a mineral admixer with high compressive strength. 18 1307335 15. The method for the collection of dust from the foundry industry as described in η or 12 of the patent application is applied to the controllable low-intensity backfill material, in which the wet sand system, the furan sand system and the shell sand system are used. And the collection of dust ash collected by four systems, such as water glass system, is used as a mineral admixer with high compressive strength and good activation. 16. If the materialized dust ash recycling method is applied to the production of controllable low-intensity backfill materials, the second one is j-mould pure " Fuwei sand system, shell mold Dust collection ash collected by four systems such as sand system and water glass system, dust collection ash by wet mold sand system 2. 吱 砂 sand 'system dust collection ash 3: shell mold sand system dust collection ash 1: water ^ system set The mixed dust ash of the ratio of the dust ash 1 is used as a mineral admixture with high compressive strength and good activating property. 1919
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI401232B (en) * 2009-09-01 2013-07-11 Univ Nat Ilan Cement raw materials and a method for making cement clinkers by using the cement raw materials
US11434168B2 (en) 2019-03-11 2022-09-06 Saudi Arabian Oil Company Utilization of heavy oil fly ash to produce controlled low strength material for backfilling applications

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI401232B (en) * 2009-09-01 2013-07-11 Univ Nat Ilan Cement raw materials and a method for making cement clinkers by using the cement raw materials
US11434168B2 (en) 2019-03-11 2022-09-06 Saudi Arabian Oil Company Utilization of heavy oil fly ash to produce controlled low strength material for backfilling applications

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