WO2017179769A1 - Liant sans ciment à base de laitier de haut-fourneau contenant du chlorure de calcium ajouté - Google Patents

Liant sans ciment à base de laitier de haut-fourneau contenant du chlorure de calcium ajouté Download PDF

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Publication number
WO2017179769A1
WO2017179769A1 PCT/KR2016/008073 KR2016008073W WO2017179769A1 WO 2017179769 A1 WO2017179769 A1 WO 2017179769A1 KR 2016008073 W KR2016008073 W KR 2016008073W WO 2017179769 A1 WO2017179769 A1 WO 2017179769A1
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Prior art keywords
calcium chloride
weight
furnace slag
blast furnace
parts
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PCT/KR2016/008073
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English (en)
Korean (ko)
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오재은
염우성
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울산과학기술원
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Priority to CN201680085748.3A priority Critical patent/CN109153610A/zh
Publication of WO2017179769A1 publication Critical patent/WO2017179769A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C04B18/141—Slags
    • C04B18/142—Steelmaking slags, converter slags
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/14—Waste materials; Refuse from metallurgical processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
    • C04B2111/1037—Cement free compositions, e.g. hydraulically hardening mixtures based on waste materials, not containing cement as such
    • 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

Definitions

  • the present invention relates to a blast furnace slag-based cementless binder added with calcium chloride.
  • Portland cement (hereinafter referred to as cement) is the most important and widely used structural material used in the modernization of the industry. It is the basis for the construction of various SOCs such as roads, bridges, tunnels, ports, houses and buildings. This is the material. Such cement is produced in the high temperature (about 1,500 °C) state during the firing process, that is, clinker manufacturing using limestone as the main raw material, in the process of producing 0.7 ⁇ 1.0 tonnes of carbon dioxide gas per tonne of cement. As a result, although cement has played an important role in the construction industry, it has recently become increasingly recognized as a negative material for the natural and global environment.
  • a binder containing cement has a problem of discharging carbon dioxide gas, and a binder having no cement has a problem of weakened strength.
  • An object of the present invention is to provide a blast furnace slag-based cement cement binder containing no cement and calcium chloride added to solve this problem.
  • Embodiments of the present invention include blast furnace slag, blast furnace slag, and fly ash, including calcium oxide (CaO) and calcium chloride (CaCl 2 ), and based on the total weight of the calcium chloride (CaCl 2 ) It discloses a blast furnace slag-based cementless binder added with calcium chloride, containing by weight in the range greater than 0 and less than 4.
  • 1 part by weight of the calcium chloride (CaCl 2 ) and 3.9 parts by weight of calcium oxide (CaO) may be included based on the total parts by weight.
  • the blast furnace slag including the calcium oxide (CaO) and calcium chloride (CaCl 2 ) with respect to the total weight parts.
  • the present embodiment may include 2 parts by weight of the calcium chloride (CaCl 2 ) and 3.8 parts by weight of calcium oxide (CaO).
  • the blast furnace slag including the calcium oxide (CaO) and calcium chloride (CaCl 2 ) with respect to the total weight parts.
  • the present embodiment may include 3 parts by weight of the calcium chloride (CaCl 2 ) and 3.7 parts by weight of calcium oxide (CaO).
  • the blast furnace slag including the calcium oxide (CaO) and calcium chloride (CaCl 2 ) with respect to the total weight parts.
  • blast furnace slag 40 parts by weight of the blast furnace slag and 20 parts by weight of the fly ash may be included in addition to the blast furnace slag including the calcium oxide (CaO) and the calcium chloride (CaCl 2 ).
  • 30 parts by weight of the fly ash may be included based on the total parts by weight.
  • the blast furnace slag including the calcium oxide (CaO) and calcium chloride (CaCl 2 ), the blast furnace slag and the fly ash is dissolved in a mixed water and mixed, and the calcium oxide (CaO) and calcium chloride (CaCl)
  • the ratio of the weight of the blended water to the weight of the blast furnace slag, the blast furnace slag, and the fly ash comprising a 2 ) may be 0.3.
  • the total weight part may include 40 parts by weight of blast furnace slag including 2 parts by weight of the calcium chloride (CaCl 2 ) and the calcium oxide (CaO) and calcium chloride (CaCl 2 ).
  • CaCl 2 calcium chloride
  • 2 parts by weight of the calcium chloride (CaCl 2 ) may be included, and may not include cement.
  • the size of the pore diameter formed in the cured body is the weight part of the calcium chloride (CaCl 2 ) In the case of 1 may be smaller than the size of the pore diameter formed in the cured body.
  • the size of the pore diameter formed in the cured body is the weight part of the calcium chloride (CaCl 2 ) 2 may be smaller than the size of the pore diameter formed in the cured body.
  • the blast furnace slag 40 parts by weight, fly ash 20 parts by weight, and blast furnace slag containing calcium oxide (CaO) and calcium chloride (CaCl 2 ), with respect to the total weight parts Disclosed is a slag based cementite binder with added calcium chloride (CaCl 2 ) containing by weight in the range greater than 0 to less than 4.
  • the present embodiment may include 2 parts by weight of the calcium chloride (CaCl 2 ) and 3.8 parts by weight of the calcium oxide (CaO).
  • the blast furnace slag including calcium oxide (CaO) and calcium chloride (CaCl 2 ) may include 40 parts by weight based on the total parts by weight.
  • the blast furnace slag containing the calcium oxide (CaO) and calcium chloride (CaCl 2 ), the blast furnace slag and the fly ash is dissolved in the mixed water and mixed, and the slag containing the calcium oxide (CaO)
  • the ratio of the weight of the blast furnace slag including the calcium oxide (CaO) and the calcium chloride (CaCl 2 ), the blast furnace slag, and the blended water to the weight of the fly ash may be 0.3.
  • CaCl 2 calcium chloride
  • 2 parts by weight of the calcium chloride (CaCl 2 ) may be included, and may not include cement.
  • the size of the pore diameter formed in the cured body is the weight part of the calcium chloride (CaCl 2 ) 1 may be smaller than the size of the pore diameter formed.
  • 2A and 2B are graphs showing the size of the pores and the distribution (number) of pores occurring in the blast furnace slag-based cementite binder containing calcium chloride according to Comparative Examples and Examples of Table 1;
  • the blast furnace slag-based cemented cement binder added with calcium chloride includes blast furnace slag (first blast furnace slag) and blast furnace slag (second blast furnace) including calcium oxide (CaO) and calcium chloride (CaCl 2 ). Slag), and fly ash, and may include calcium chloride (CaCl 2 ) in a weight part within a range of greater than 0 and less than 4, based on the total weight.
  • the blast furnace slag further containing the calcium oxide and calcium chloride may be referred to as a first blast furnace slag
  • the blast furnace slag further containing calcium oxide and calcium chloride may be referred to as a second blast furnace slag.
  • blast furnace slag in addition to blast furnace slag, a 1st blast furnace slag says the thing containing calcium oxide and a calcium chloride further, and the 2nd blast furnace slag means what was comprised only with blast furnace slag.
  • the blast furnace slag of the first blast furnace slag and the blast furnace slag of the second blast furnace slag may be the same.
  • Blast furnace slag may refer to a hydrated slag obtained by quenching the hot molten slag by-product generated as a by-product during the smelting of pig iron with water, and may play a role of activating a chemical reaction as a binder by calcium oxide (CaO).
  • CaO calcium oxide
  • the blast furnace slag-based cementite binder added with calcium chloride includes blast furnace slag (first blast furnace slag) including calcium oxide (CaO) and calcium chloride (CaCl 2 ), based on the total weight. ) May be included in an amount of 40 parts by weight.
  • the blast furnace slag-based cement cement binder added with calcium chloride according to the present embodiment may include calcium oxide (CaO) in a weight part within a range of greater than 3.6 and less than 4, based on the total weight.
  • CaO calcium oxide
  • the blast furnace slag-based cement cement binder added with calcium chloride according to the present embodiment may include up to 5 parts by weight of calcium oxide (CaO) based on the total weight.
  • CaO calcium oxide
  • Blast furnace slag refers to a product that is produced in the process of manufacturing pig iron in steel mill blast furnaces, and SiO2 and Al 2 O 3 , which are present in the ash of the main raw materials (iron ore) and the subsidiary materials (coke, limestone), are formed by reaction with lime at high temperatures.
  • the constituent elements can be the same as ordinary rocks.
  • the blast furnace slag-based cement cement binder added with calcium chloride according to the present embodiment may include 40 parts by weight of blast furnace slag (second blast furnace slag) based on the total weight.
  • Fly ash means that after burning coal, components such as silicon and aluminum in coal remain in the form of oxide and remain as fine dust of silicon oxide (SiO 2 ) or aluminum oxide (Al 2 O 3 ). Fly ash is made of very fine dust, and the particle size may be similar to cement.
  • the blast furnace slag-based cementless binder added with calcium chloride according to the present embodiment has an economically advantageous effect by including fly ash, which improves workability and lowers the heat of hardening, and improves long-term strength and water tightness.
  • fly ash also makes concrete curing time longer, but it has advantages such as improved fluidity, improved long-term strength, reduced heat of hydration, suppressed alkali aggregate reaction, resistance to sulphate and improved concrete water tightness.
  • the blast furnace slag-based cementless binder added with calcium chloride according to the present embodiment has an advantageous effect on cost reduction.
  • the blast furnace slag-based cement cement binder added with calcium chloride according to the present embodiment may include 20 parts by weight of fly ash, based on the total parts by weight.
  • the blast furnace slag-based cement cement binder added with calcium chloride according to the present embodiment may include 30 parts by weight of fly ash, based on the total weight of the binder.
  • the blast furnace slag-based cement cement binder added with calcium chloride according to the present embodiment may include the calcium chloride (CaCl 2 ) in an amount greater than 0 and less than 4 parts by weight based on the total weight.
  • calcium oxide (CaO) and / or calcium chloride (CaCl 2) calcium oxide (CaO) and / or calcium chloride (CaCl 2), which content may be included in the blast furnace slag and / or fly ash It does not mean, the content of calcium oxide (CaO) and / or calcium chloride (CaCl 2 ) is added in addition to the blast furnace slag and / or fly ash. This applies equally to all embodiments of the present specification.
  • Table 1 below is a table showing the weight ratio of the components constituting the blast furnace slag-based cement cement binder with calcium chloride according to various embodiments of the present invention, Figure 1 according to Comparative Examples and Examples of Table 1 A graph showing the compressive strength of blast furnace slag based cementite binder added with calcium chloride (CaCl 2 ).
  • Comparative Example 1 may be a cementless binder containing no calcium chloride (CaCl 2 ).
  • the blast furnace slag-based cementite binder added with calcium chloride includes 1 part by weight of calcium chloride (CaCl 2 ) and 3.9 parts by weight of calcium oxide (CaO).
  • blast furnace slag (first blast furnace slag) containing calcium oxide (CaO) and calcium chloride (CaCl 2 )
  • blast furnace slag (second blast furnace slag)
  • fly ash 20 parts by weight 40 parts by weight of blast furnace slag (first blast furnace slag) containing calcium oxide (CaO) and calcium chloride (CaCl 2 )
  • the weight part of the blast furnace slag and fly ash contained in the blast furnace slag-based cement cement binder added with calcium chloride is not limited thereto, and as an optional embodiment, the fly ash may be based on the total weight part. It may be included up to 30 parts by weight.
  • Example 2 of the present invention as shown in Table 1, the blast furnace slag-based cementite binder added with calcium chloride contained 2 parts by weight of calcium chloride (CaCl 2 ), and calcium oxide (CaO) 3.8 Contains by weight.
  • CaCl 2 calcium chloride
  • CaO calcium oxide
  • blast furnace slag (first blast furnace slag) containing calcium oxide (CaO) and calcium chloride (CaCl 2 ), 40 parts by weight of blast furnace slag (second blast furnace slag), and fly ash 20 parts by weight.
  • the weight part of the blast furnace slag and fly ash contained in the blast furnace slag-based cement cement binder added with calcium chloride is not limited thereto, and as an optional embodiment, the fly ash may be based on the total weight part. It may be included up to 30 parts by weight.
  • Example 3 of the present invention as shown in Table 1, the blast furnace slag-based cementite binder to which calcium chloride was added comprises 3 parts by weight of calcium chloride (CaCl 2 ), and calcium oxide (CaO) 3.7. Contains by weight.
  • blast furnace slag (first blast furnace slag) containing calcium oxide (CaO) and calcium chloride (CaCl 2 ), 40 parts by weight of blast furnace slag (second blast furnace slag), and fly ash 20 parts by weight.
  • the weight part of the blast furnace slag and fly ash is not limited thereto, and in an optional embodiment, the fly ash in the blast furnace slag-based cement cement binder added with calcium chloride, 30 parts by weight It may be included up to parts by weight.
  • Example 1, Example 2, and Example 3 shown in Table 1 are each contained by 1, 2, 3 parts by weight of calcium chloride (CaCl 2 ) relative to the total weight parts, which are only examples according to the present invention
  • the weight part of calcium chloride (CaCl 2 ) contained in the blast furnace slag-based cement cement binder added with calcium chloride is not limited thereto. If the weight part exceeds 0 and less than 4 parts by weight, the calcium chloride (CaCl 2 ) is limited by weight. Can be included without.
  • the blast furnace slag-based cement cement binder added with calcium chloride increases the compressive strength as the calcium chloride (CaCl 2 ) is included as the weight part in the range of more than 0 to less than 4 parts by weight, There is an advantageous effect of exhibiting a level of compressive strength similar to that of conventional cement (OPC).
  • the blast furnace slag-based cement cement binder with calcium chloride added according to this embodiment is replaced with cement produced through a high-temperature firing process using limestone as a main raw material, and using a blast furnace slag generated in a steel mill, Similar compressive strengths can be obtained.
  • the blast furnace slag-based cement cement binder with calcium chloride added according to this embodiment is environmentally friendly and contains blast furnace slag (first blast furnace slag) to which calcium oxide (CaO) and calcium chloride (CaCl 2 ) are added.
  • blast furnace slag first blast furnace slag
  • CaO calcium oxide
  • CaCl 2 calcium chloride
  • the graph shown in FIG. 1 shows the compressive strength of blast furnace slag based cementite binder added with calcium chloride according to the amount of calcium chloride (CaCl 2 ) contained in the binder.
  • the horizontal axis of the graph means curing period (days) of the binder, and the vertical axis of the graph means compressive strength (MPa).
  • the blast furnace slag (first blast furnace slag), blast furnace containing calcium oxide (CaO) and calcium chloride (CaCl 2 ) in the process of manufacturing the blast furnace slag-based cement cement binder with calcium chloride according to this embodiment
  • Slag second blast furnace slag
  • fly ash can be dissolved in mixed water and mixed.
  • increasing the value of W / C means that the weight of the blended water increases with respect to the total weight of the binder.
  • W weight of the blended water
  • C the total weight of the binder
  • the compressive strength increases as the curing period increases in the comparative example and all the examples.
  • 0CSF is a cementless binder containing no calcium chloride (CaCl 2 ) corresponding to the comparative example described above.
  • CaCl 2 calcium chloride
  • the binder of the addition of blast furnace slag-based (Examples 1 to 3) is not included, the addition of calcium chloride ( It can be seen that there is always a low compressive strength value regardless of the weight part or the curing period of CaCl 2 ).
  • Example 1 calcium chloride (CaCl 2 ) is 1 part by weight (Example 1), 2 parts by weight (Example 2), and 3 parts by weight (total weight parts), respectively.
  • Example 3 shows the blast furnace slag-based cement cement binder included as much as.
  • the compressive strength of the blast furnace slag based cementite binder (1CSF binder, 2CSF binder, 3CSF binder) added with calcium chloride was compared with that of cementless binder containing no calcium chloride (CaCl 2 ). When it is significantly larger.
  • blast furnace slag-based cement cement binders (1CSF binder, 2CSF binder, 3CSF binder) when the curing period is shorter than when the curing period is long, that is, calcium chloride is added in terms of early strength Since it is significantly larger in comparison with this non-cemented cement binder (0CSF binder), blast furnace slag-based cement cement binder added with calcium chloride has an advantageous effect of very high early strength and final strength.
  • the compressive strength value is the greatest in the case of the 2CSF binder (Example 2) containing 2 parts by weight of calcium chloride (CaCl 2 ) based on the total parts by weight.
  • the curing period was relatively short for 3 days and 7 days. It has a compressive strength value and is similar to the compressive strength value of the 2CSF binder.
  • the early strength values of the 2CSF binder and the 3CSF binder are similarly large, but as time passes, the difference between the compressive strength value of the 2CSF binder and the 3CSF binder increases, so that the compressive strength value of the 2CSF binder is higher than that of the other embodiments. You can see that it is much larger.
  • the cementless binder according to the present embodiment includes calcium chloride (CaCl 2 ) and thus can exhibit a compressive strength similar to that of conventional cement (OPC) without cement, which is environmentally friendly and has a strong strength.
  • the compressive strength value was the highest in the Example (2CSF binder, Example 2) containing 2 parts by weight of calcium chloride (CaCl 2 ) and 38 parts by weight of slag including calcium oxide (CaO).
  • 2A and 2B are graphs showing the size of the pores and the number of pores (distribution) of pores occurring in the blast furnace slag based cementite binder with calcium chloride according to Comparative Examples and Examples of Table 1;
  • FIG. 2A shows the curing period of 3 days.
  • FIG. 2B shows the size of the pore diameter and the number of distributions (distribution) of the respective embodiments when the curing period is 28 days.
  • the horizontal axis represents the diameter of the pores, that is, the pore size occurring in the binder, and the vertical axis represents the distribution (number) of the pores.
  • 0.3 shown in the graphs of FIGS. 2A and 2B is a value of W / C, as described above, blast furnace slag (first blast furnace slag) and blast furnace slag containing calcium oxide (CaO) and calcium chloride (CaCl 2 ). Blast furnace slag) and the weight (W) of the blended water in which the binder components dissolve relative to the total weight (C) of the fly ash.
  • the compressive strength of the binder increases.
  • the compressive strength increases as the weight part of calcium chloride (CaCl 2 ) included in the binder increases.
  • the blast furnace slag-based cement cement binder (1CSF binder, 2CSF binder, 3CSF binder) of the present invention is added to the calcium chloride (CaCl 2 ) is included in the weight part in the range of more than 0 to less than 4, calcium chloride-containing binder Compared with (OCSF binder), the compressive strength is advantageous.
  • the size of the pore diameter distributed in the 3CSF binder containing 3 parts by weight of calcium chloride (CaCl 2 ) is the smallest. have.
  • the smaller the amount of calcium chloride (CaCl 2 ) the larger the pore diameter distributed in each of the 2CSF, 1CSF, and 0CSF binders. That is, the less the calcium chloride (CaCl 2 ) is included, the weaker the compressive strength of the binder.
  • the binder does not contain calcium chloride (CaCl 2 )
  • the size of the pore diameter distributed in the binder (1CSF binder, 2CSF binder, 3CSF binder) containing calcium chloride (CaCl 2 ) is significantly smaller than (0CSF).
  • the blast furnace slag-based cementless binder according to the present embodiment has high strength. have.
  • Curing days is 28 days case, the calcium chloride (CaCl 2) binder material (0CSF) and calcium chloride are not included (CaCl 2) cementless binder of the blast furnace slag-based containing a as shown in Figure 2b (1CSF binder , The size of the pore diameter included in the 2CSF binder, 3CSF binder) is not significantly different, but in this case also included in the blast furnace slag-based cement cement binder (1CSF binder, 2CSF binder, 3CSF binder) containing calcium chloride (CaCl 2 ) It can be seen that the size of the pore diameter is smaller than the size of the pore diameter included in the binder (0CSF binder) does not contain calcium chloride (CaCl 2 ).
  • the blast furnace slag based cementite binder containing calcium chloride according to the present embodiment has an advantageous effect that the compressive strength is greater than that of the cementite binder containing no calcium chloride (CaCl 2 ) even if the curing period is long. .
  • the size of the pore diameter included in the binder gradually increases in the order of 3CSF, 1CSF, 2CSF, 0CSF, accordingly, the strength is gradually lowered.
  • blast furnace slag-based cement cement binder (1CSF binder, 2CSF binder, 3CSF binder) containing calcium chloride (CaCl 2 ) according to an embodiment of the present invention is a relatively diameter size Has a small beneficial effect, and the compressive strength is large.
  • the curing period is three days than when the curing period is 28 days, the distribution (number) value of the voids is lower, and the difference in the pore diameter size is larger than that of calcium chloride (CaCl 2 ) is not included. As a result, the early strength is high.
  • the present invention can be used in place of cement in various construction fields where cement is used.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
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Abstract

Un mode de réalisation de la présente invention concerne un laitier de haut-fourneau comprenant de l'oxyde de calcium (CaO) et du chlorure de calcium (CaCl2) et un liant sans ciment à base de laitier de haut-fourneau comprenant des cendres volantes contenant du chlorure de calcium (CaCl2) ajouté, le chlorure de calcium étant dans la plage de plus de 0 et de moins de 4 parties en poids par rapport aux 100 parties totales en poids.
PCT/KR2016/008073 2016-04-15 2016-07-25 Liant sans ciment à base de laitier de haut-fourneau contenant du chlorure de calcium ajouté WO2017179769A1 (fr)

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CN201680085748.3A CN109153610A (zh) 2016-04-15 2016-07-25 添加氯化钙的高炉矿渣基无水泥结合材料

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KR10-2016-0046503 2016-04-15
KR20160046503 2016-04-15

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KR102103471B1 (ko) 2018-06-29 2020-04-23 한국과학기술원 산업부산물 기반 무시멘트 콘크리트 조성물
KR102146455B1 (ko) * 2018-08-29 2020-08-20 울산과학기술원 고로슬래그 기반 조성물 및 이의 경화체
KR102314761B1 (ko) * 2019-07-16 2021-10-19 울산과학기술원 질산염을 함유하는 결합재 조성물 및 이의 경화체
KR102369849B1 (ko) * 2019-12-06 2022-03-04 주식회사 대웅 연약지반 급속 처리방법

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