TW201834999A - Concrete composition - Google Patents

Concrete composition Download PDF

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TW201834999A
TW201834999A TW106108795A TW106108795A TW201834999A TW 201834999 A TW201834999 A TW 201834999A TW 106108795 A TW106108795 A TW 106108795A TW 106108795 A TW106108795 A TW 106108795A TW 201834999 A TW201834999 A TW 201834999A
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Taiwan
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concrete composition
concrete
steel mill
balance
cement
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TW106108795A
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Chinese (zh)
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戴文慶
戴嘉雄
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戴文慶
戴嘉雄
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Priority to TW106108795A priority Critical patent/TW201834999A/en
Publication of TW201834999A publication Critical patent/TW201834999A/en

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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A concrete composition includes 50-84 wt% of mineral fines from steel mill and less than 50 wt% of cementing material, and can selectively add not more than 30 wt% of bottom ash from coal-fired power plant, not more than 30 wt% of disused concrete aggregate or not more than 1 wt% of chemical admixture for manufacturing a low-intensity concrete.

Description

混凝土組成物Concrete composition

本發明關於一種混凝土組成物，特別是一種有效利用工業副產物或廢棄物的混凝土組成物。The present invention relates to a concrete composition, particularly a concrete composition that effectively utilizes industrial by-products or waste.

一般營建工程之結構混凝土係由膠結材(水泥)、骨材(天然砂石)及水拌合而成，且根據混凝土結構設計規範，其抗壓強度不得小於210kg/cm2 ，而於非結構性混凝土中，如消波塊、紐澤西護欄或重力擋土牆等，則可使用抗壓強度小於210kg/cm2 之低強度混凝土。The structural concrete of the general construction project is made of cement (cement), aggregate (natural sand) and water. According to the concrete structure design specification, the compressive strength should not be less than 210kg/cm 2 , and the non-structure In the concrete, such as the wave block, the New Jersey guardrail or the gravity retaining wall, low-strength concrete with a compressive strength of less than 210 kg/cm 2 can be used.

由於天然砂石資源日益減少，相關產業致力於使用工業副產物/廢棄物取代天然砂石，以應用於非結構性混凝土中，藉由再利用工業副產物/廢棄物及減少天然砂石使用量，有效降低環境負擔及原料成本。Due to the decreasing natural sand and gravel resources, the related industries are committed to replacing natural sand and gravel with industrial by-products/waste for use in non-structural concrete, by reusing industrial by-products/waste and reducing the amount of natural sandstone used. Effectively reduce environmental burden and raw material costs.

本發明之一目的在於提供一種混凝土組成物，其由50-84 wt%的一煉鋼廠礦物細料及餘量的一膠結材所組成。It is an object of the present invention to provide a concrete composition comprising 50-84 wt% of a steel mill mineral fines and a balance of a cementitious material.

本發明之一目的在於提供一種混凝土組成物，其由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一燃煤電廠底渣及餘量的一膠結材所組成。It is an object of the present invention to provide a concrete composition comprising 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a coal-fired power plant bottom slag, and a balance of a cementitious material.

本發明之一目的在於提供一種混凝土組成物，其由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一廢棄混凝土粒料及餘量的一膠結材所組成。It is an object of the present invention to provide a concrete composition comprising 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a waste concrete pellet and a balance of a cementitious material.

本發明之一目的在於提供一種混凝土組成物，其由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一燃煤電廠底渣、不大於30 wt%的一廢棄混凝土粒料及餘量的一膠結材所組成。An object of the present invention is to provide a concrete composition comprising 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a coal-fired power plant bottom slag, and no more than 30 wt% of a waste concrete. The pellets and the balance of a cement material.

本發明之一目的在於提供一種混凝土組成物，其由50-84 wt%的一煉鋼廠礦物細料、不大於1 wt%的一化學摻料及餘量的一膠結材所組成。It is an object of the present invention to provide a concrete composition comprising 50-84 wt% of a steel mill mineral fines, no more than 1 wt% of a chemical admixture, and a balance of a cementitious material.

本發明之一目的在於提供一種混凝土組成物，其由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一燃煤電廠底渣、不大於1 wt%的一化學摻料及餘量的一膠結材所組成。An object of the present invention is to provide a concrete composition comprising 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a coal-fired power plant bottom slag, and no more than 1 wt% of a chemical blend. The material and the balance of a cement material.

本發明之一目的在於提供一種混凝土組成物，其由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一廢棄混凝土粒料、不大於1 wt%的一化學摻料及餘量的一膠結材所組成。An object of the present invention is to provide a concrete composition comprising 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a waste concrete pellet, no more than 1 wt% of a chemical admixture and The balance consists of a cement material.

本發明之一目的在於提供一種混凝土組成物，其由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一燃煤電廠底渣、不大於30 wt%的一廢棄混凝土粒料、不大於1 wt%的一化學摻料及餘量的一膠結材所組成。An object of the present invention is to provide a concrete composition comprising 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a coal-fired power plant bottom slag, and no more than 30 wt% of a waste concrete. The pellets are composed of no more than 1 wt% of a chemical admixture and a balance of a cement.

本發明之一目的在於提供一種混凝土組成物，其包含50-84 wt%的一煉鋼廠礦物細料及小於50 wt%的一膠結材。It is an object of the present invention to provide a concrete composition comprising 50-84 wt% of a steel mill mineral fines and less than 50 wt% of a cementitious material.

本發明以該煉鋼廠礦物細料、該燃煤電廠底渣及該廢棄混凝土粒料替代天然砂石，可有效利用工業副產物或廢棄物，並減少天然砂石的使用量，且所製成的低強度混凝土可作為非結構性混凝土應用於各種工程中。The invention replaces the natural sandstone with the mineral fine material of the steelmaking plant, the bottom slag of the coal-fired power plant and the waste concrete pellets, can effectively utilize industrial by-products or wastes, and reduce the use amount of natural sandstone, and is manufactured by the method. The low-strength concrete can be used as a non-structural concrete in various projects.

本發明之一種混凝土組成物包含50-84 wt%的一煉鋼廠礦物細料(50 wt%≦煉鋼廠礦物細料≦84 wt%)及小於50 wt%的一膠結材，該煉鋼廠礦物細料為煉鋼廠之副產物，將煉鋼廠生產過程中產生的脫硫浮渣搗碎，並以磁吸方式排除殘存的次級鐵材後即為該煉鋼廠礦物細料，較佳地，該煉鋼廠礦物細料於該混凝土組成物中的含量大於60 wt%且不大於84 wt%(60 wt%＜煉鋼廠礦物細料≦84 wt%)，且其粒徑不大於25 mm，該膠結材選自於由水泥、爐石粉及飛灰所組成之群組中至少一種，其中水泥可選自於波特蘭水泥，爐石粉為煉鋼廠水淬高爐石研磨而成之細粉，飛灰為燃煤火力發電廠之副產物，較佳地，該膠結材包含5-15 wt%的水泥、不大於6 wt%的爐石粉及不大於6 wt%的飛灰。A concrete composition of the present invention comprises 50-84 wt% of a steel mill mineral fines (50 wt% ≦ steel mill mineral fines ≦ 84 wt%) and less than 50 wt% of a cement material, the steel making The mineral fine material of the plant is a by-product of the steelmaking plant. The desulfurization dross generated during the production process of the steelmaking plant is crushed, and the remaining secondary iron material is removed by magnetic attraction, which is the mineral fine material of the steelmaking plant. Preferably, the content of the steel mill mineral fines in the concrete composition is greater than 60 wt% and not more than 84 wt% (60 wt% < steel mill mineral fines ≦ 84 wt%), and the particles thereof The diameter is not more than 25 mm, and the cement material is selected from at least one group consisting of cement, hearth powder and fly ash, wherein the cement may be selected from Portland cement, and the hearth powder is water quenched blast furnace stone of the steelmaking plant. The fine powder is ground, and the fly ash is a by-product of a coal-fired thermal power plant. Preferably, the cement material comprises 5-15 wt% cement, no more than 6 wt% of hearthstone powder and no more than 6 wt% Fly ash.

該混凝土組成物可另包含不大於30 wt%的一燃煤電廠底渣、不大於30 wt%的一廢棄混凝土粒料或不大於1 wt%的一化學摻料，該燃煤電廠底渣為行政院環保署公告之再利用廢棄物(R-1107)，該廢棄混凝土粒料來自於營建工程之混合廢棄物，該化學摻料可選自於國家標準混凝土用化學摻料CNS 12283所列之減水劑(A type)、緩凝劑(B type)、早強劑(C type)、減水緩凝劑(D type)、減水早強劑(E type)、高性能減水劑(F type)或高性能減水緩凝劑(G type)中至少一種，其中該燃煤電廠底渣及該廢棄混凝土粒料之粒徑不大於25 mm。The concrete composition may further comprise not more than 30 wt% of a coal-fired power plant bottom slag, no more than 30 wt% of a waste concrete pellet or no more than 1 wt% of a chemical admixture, and the coal-fired power plant bottom slag is Reuse waste (R-1107) announced by the Environmental Protection Agency of the Executive Yuan. The waste concrete pellets are from mixed waste from the construction project. The chemical admixture may be selected from the national standard chemical admixture CNS 12283. Water reducing agent (A type), retarder (B type), early strength agent (C type), water reducing retarder (D type), water reducing early strength agent (E type), high performance water reducing agent (F type) or At least one of a high-performance water-reducing retarder (G type), wherein the coal-fired power plant bottom slag and the waste concrete pellet have a particle diameter of not more than 25 mm.

較佳地，該混凝土組成物可由50-84 wt%的該煉鋼廠礦物細料及餘量的該膠結材所組成，或是由50-84 wt%的該煉鋼廠礦物細料、不大於1 wt%的該化學摻料及餘量的該膠結材所組成。Preferably, the concrete composition may be composed of 50-84 wt% of the steel mill mineral fines and the balance of the cement material, or 50-84 wt% of the steel mill mineral fines, not more than 1 wt% of the chemical admixture and the balance of the cement material.

較佳地，該混凝土組成物可由50-84 wt%的該煉鋼廠礦物細料、不大於30 wt%的該燃煤電廠底渣及餘量的該膠結材所組成，或是由50-84 wt%的該煉鋼廠礦物細料、不大於30 wt%的該燃煤電廠底渣、不大於1 wt%的該化學摻料及餘量的該膠結材所組成。Preferably, the concrete composition may consist of 50-84 wt% of the steel mill mineral fines, no more than 30 wt% of the coal-fired power plant bottom slag and the balance of the cement, or 50- 84 wt% of the steel mill mineral fines, no more than 30 wt% of the coal-fired power plant bottom slag, no more than 1 wt% of the chemical admixture and the balance of the cement.

較佳地，該混凝土組成物可由50-84 wt%的該煉鋼廠礦物細料、不大於30 wt%的該廢棄混凝土粒料及餘量的該膠結材所組成，或是由50-84 wt%的該煉鋼廠礦物細料、不大於30 wt%的該廢棄混凝土粒料、不大於1 wt%的該化學摻料及餘量的該膠結材所組成。Preferably, the concrete composition may consist of 50-84 wt% of the steel mill mineral fines, no more than 30 wt% of the waste concrete pellets and the balance of the cement, or 50-84 wt % of the steel mill mineral fines, no more than 30 wt% of the waste concrete pellets, no more than 1 wt% of the chemical admixture and the balance of the cement.

較佳地，該混凝土組成物可由50-84 wt%的該煉鋼廠礦物細料、不大於30 wt%的該燃煤電廠底渣、不大於30 wt%的該廢棄混凝土粒料及餘量的該膠結材所組成，或是由50-84 wt%的該煉鋼廠礦物細料、不大於30 wt%的該燃煤電廠底渣、不大於30 wt%的該廢棄混凝土粒料、不大於1 wt%的該化學摻料及餘量的該膠結材所組成。Preferably, the concrete composition may be 50-84 wt% of the steel mill mineral fines, no more than 30 wt% of the coal-fired power plant bottom slag, no more than 30 wt% of the waste concrete pellets and the balance The cement material is composed of 50-84 wt% of the steel mill mineral fines, no more than 30 wt% of the coal-fired power plant bottom slag, no more than 30 wt% of the waste concrete pellets, no more than 1 wt% of the chemical admixture and the balance of the cement material.

請參閱表1，其為不同混凝土組成物的成份配比，其中300kg膠結材中包含100kg水泥、100kg爐石粉及100kg飛灰。 表1 Please refer to Table 1, which is the composition ratio of different concrete compositions, wherein 300kg of cement contains 100kg cement, 100kg hearth powder and 100kg fly ash. Table 1

請參閱表2，其為不同配比的混凝土組成物成份重量百分比(wt%)。 表2 Please refer to Table 2, which is the weight percentage (wt%) of the composition of the concrete composition with different ratios. Table 2

請參閱表3，其為不同配比的混凝土組成物與水拌合後，於養護齡期3、7及28天時測得的抗壓強度(kg/cm2 )，由抗壓強度測試結果可得知，以本發明之混凝土組成物所製成的混凝土為低強度混凝土(抗壓強度不大於210 kg/cm2 )。 表3 Please refer to Table 3, which is the compressive strength (kg/cm 2 ) measured at 3, 7 and 28 days after the curing age of the concrete composition with different proportions, and the compressive strength test results. It is known that the concrete made of the concrete composition of the present invention is low-strength concrete (compressive strength is not more than 210 kg/cm 2 ). table 3

以本發明之混凝土組成物所製成的低強度混凝土可作為非結構性混凝土，應用於重力擋土牆、打底混凝土、管溝回填材料、土壤改良材料(抑制土壤液化)、消波塊、紐澤西護欄等，且本發明之混凝土組成物係以工業副產物或廢棄物替代天然砂石，因此可有效降低環境負擔及混凝土原料成本，此外，將本發明之混凝土組成物所製成的混凝土破碎後再加入膠結材進行拌合，即可再次製成低強度混凝土，因此本發明具有完全回收再利用之功效。The low-strength concrete made of the concrete composition of the invention can be used as a non-structural concrete, applied to a gravity retaining wall, a bottoming concrete, a trench backfill material, a soil improving material (inhibiting soil liquefaction), a wave block, New Jersey guardrails and the like, and the concrete composition of the present invention replaces natural sandstone with industrial by-products or waste, thereby effectively reducing environmental burden and cost of concrete raw materials, and further, the concrete composition of the present invention is made. After the concrete is crushed and then the cement material is added for mixing, the low-strength concrete can be made again, so the invention has the effect of completely recycling and recycling.

本發明之保護範圍當視後附之申請專利範圍所界定者為準，任何熟知此項技藝者，在不脫離本發明之精神和範圍內所作之任何變化與修改，均屬於本發明之保護範圍。The scope of the present invention is defined by the scope of the appended claims, and any changes and modifications made by those skilled in the art without departing from the spirit and scope of the invention are within the scope of the present invention. .

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Claims (17)

一種混凝土組成物，由50-84 wt%的一煉鋼廠礦物細料及餘量的一膠結材所組成。A concrete composition consisting of 50-84 wt% of a steel mill mineral fines and a balance of a cement material. 一種混凝土組成物，由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一燃煤電廠底渣及餘量的一膠結材所組成。A concrete composition consisting of 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a coal-fired power plant bottom slag and a balance of a cement material. 一種混凝土組成物，由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一廢棄混凝土粒料及餘量的一膠結材所組成。A concrete composition consisting of 50-84 wt% of a steel mill mineral fine material, no more than 30 wt% of a waste concrete pellet and a balance of a cement material. 一種混凝土組成物，由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一燃煤電廠底渣、不大於30 wt%的一廢棄混凝土粒料及餘量的一膠結材所組成。A concrete composition comprising 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a coal-fired power plant bottom slag, no more than 30 wt% of a waste concrete pellet and a balance of a cementitious material Composed of. 一種混凝土組成物，由50-84 wt%的一煉鋼廠礦物細料、不大於1 wt%的一化學摻料及餘量的一膠結材所組成。A concrete composition consisting of 50-84 wt% of a steel mill mineral fines, no more than 1 wt% of a chemical admixture, and a balance of a cement. 一種混凝土組成物，由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一燃煤電廠底渣、不大於1 wt%的一化學摻料及餘量的一膠結材所組成。A concrete composition comprising 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a coal-fired power plant bottom slag, no more than 1 wt% of a chemical admixture, and a balance of a cement material composition. 一種混凝土組成物，由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一廢棄混凝土粒料、不大於1 wt%的一化學摻料及餘量的一膠結材所組成。A concrete composition consisting of 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a waste concrete pellet, no more than 1 wt% of a chemical admixture and a balance of a cement material . 一種混凝土組成物，由50-84 wt%的一煉鋼廠礦物細料、不大於30 wt%的一燃煤電廠底渣、不大於30 wt%的一廢棄混凝土粒料、不大於1 wt%的一化學摻料及餘量的一膠結材所組成。A concrete composition comprising 50-84 wt% of a steel mill mineral fines, no more than 30 wt% of a coal-fired power plant bottom slag, no more than 30 wt% of a waste concrete pellet, no more than 1 wt% A chemical admixture and a balance of a cement material. 一種混凝土組成物，其包含50-84 wt%的一煉鋼廠礦物細料及小於50 wt%的一膠結材。A concrete composition comprising 50-84 wt% of a steel mill mineral fines and less than 50 wt% of a cementitious material. 如申請專利範圍第9項所述之混凝土組成物，其另包含不大於30 wt%的一燃煤電廠底渣。The concrete composition according to claim 9, which further comprises not more than 30 wt% of a coal-fired power plant bottom slag. 如申請專利範圍第9項所述之混凝土組成物，其另包含不大於30 wt%的一廢棄混凝土粒料。The concrete composition according to claim 9, which further comprises not less than 30% by weight of a waste concrete pellet. 如申請專利範圍第9項所述之混凝土組成物，其另包含不大於1 wt%的一化學摻料。The concrete composition of claim 9, which further comprises no more than 1 wt% of a chemical admixture. 如申請專利範圍第1至12項中任一項所述之混凝土組成物，其中該煉鋼廠礦物細料含量大於60 wt%且不大於84 wt%。The concrete composition according to any one of claims 1 to 12, wherein the steel mill has a mineral fines content of more than 60 wt% and not more than 84 wt%. 如申請專利範圍第1至12項中任一項所述之混凝土組成物，其中該膠結材選自於由水泥、爐石粉及飛灰所組成之群組中至少一種。The concrete composition according to any one of claims 1 to 12, wherein the cement material is at least one selected from the group consisting of cement, hearth powder, and fly ash. 如申請專利範圍第9項所述之混凝土組成物，其中該膠結材包含5-15 wt%的水泥。The concrete composition of claim 9, wherein the cement material comprises 5-15 wt% cement. 如申請專利範圍第15項所述之混凝土組成物，其中該膠結材另包含不大於6 wt%的爐石粉。The concrete composition of claim 15, wherein the cementitious material further comprises no more than 6 wt% of granited stone powder. 如申請專利範圍第15或16項所述之混凝土組成物，其中該膠結材另包含不大於6 wt%的飛灰。The concrete composition of claim 15 or 16, wherein the cementitious material further comprises no more than 6 wt% of fly ash.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112174594A (en) * 2019-07-01 2021-01-05 林嘉政 Recycled concrete and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112174594A (en) * 2019-07-01 2021-01-05 林嘉政 Recycled concrete and preparation method thereof

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