US3867161A - Cement asphalt ballast grout composition for track - Google Patents

Cement asphalt ballast grout composition for track Download PDF

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Publication number
US3867161A
US3867161A US400992A US40099273A US3867161A US 3867161 A US3867161 A US 3867161A US 400992 A US400992 A US 400992A US 40099273 A US40099273 A US 40099273A US 3867161 A US3867161 A US 3867161A
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United States
Prior art keywords
weight
mortar
cement
grout composition
parts
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Expired - Lifetime
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US400992A
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English (en)
Inventor
Okihiko Torii
Tsutomu Mizunuma
Iwao Mino
Tetsuya Ando
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Japan National Railways
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Japan National Railways
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E01C7/26—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders mixed with other materials, e.g. cement, rubber, leather, fibre

Definitions

  • a cement asphalt ballast grout composition comprising cement, an asphalt emulsion. calcium sulfoalumi nate hydrate-forming mineral. an electrolyte. a thickener and a foaming agent is excellent in the workability of mortar and in the property of hardened mortar.
  • the slab track which is produced by injecting cement asphalt mortar (hereinafter referred to as mortar) under the concrete slab, is a most preferable track. Because, in the slab track the irregularity of track hardly occurs, and the sinking of track can be restored by injecting mortar, and therefore the maintenance of the slab track is very easy.
  • a method for constructing the slab track will be explained with reference to FIG. 1.
  • a roadbed concrete 1 is firstly placed, a concrete slab 2 is arranged on the roadbed concrete I, adjusted by a jack so as to form a planned alignment and then supported at four points by supporting rods, a space 3 formed between the roadbed concrete 1 and the concrete slab 2 is enclosed with a frame, a mortar is injected into the space 3 through holes 5, and after the mortar reached a predetermined strength, rails 4 are laid.
  • the mortar to be injected in the above described method is required to satisfy the following conditions.
  • the mortar has workability.
  • mortars having the following physical properties are advantageously used in the construction of the slab track.
  • the mortar has a compressive strength of 10 2O Kg/cm? 2.
  • the mortar has an elasticity of 0.5 5.0 10
  • the mortar, at the injection, has such a consistency that the flow down time through the J-funnel is 17 26 seconds.
  • the hardened mortar does not cause dry shrinkage.
  • the fineness modulus of sand'in the mortar is not limited.
  • the present invention provides a cement asphalt ballast grout composition for directly joining-type track, which comprises 100 parts by weight of cement, 20 400 parts by weight of an asphalt emulsion, 20 parts by weight of a calcium sulfoaluminate hydrate-forming mineral, 0.1 5.0 parts by weight of an electrolyte, 0.01 5.0 parts by weight of a thickener and 0.01 0.03 part by weight of a foaming agent.
  • the cement to be used in the present invention includes Portland series cement, mixed cement and the like.
  • calcium sulfoaluminate hydrate-forming mineral to be used in the present invention mention may be made of, for example, type K, type M and type S minerals described in American Concrete Institute Journal, 1970, No. 8, pages 584 589.
  • these minerals ones having a fineness of a Blaine value of 4,000 10,000 cm /g are preferably used.
  • the calcium sulfoaluminate hydrate-forming mineral is used in an amount of 5 20 percent by weight based on the weight of cement.
  • the above described calcium sulfoaluminate-forming minerals ones having such a property that a cement mortar prepared from 5 20 percent by weight of the mineral and the remainder of cement has a free expansion coefficient of about 0.05 0.5 percent are preferably used.
  • the calcium sulfoaluminate hydrate-forming mineral forms calcium sulfoaluminate hydrate, that is, ettringite, in the resulting mortar and the mortar expands for about 7 days. Therefore. the sinking of the mortar, just after the placing, can'be prevented by the actions ofthe foaming agent and the ettringite, and further the shrinkage of the hardened mortar due to drying does not occur and cracks does not appear in the hardened mortar.
  • the mortar of the present invention shows the thixotropy phenomenon by the actions of the powdery cal cium sulfoaluminate hydrate-forming mineral and the thickener. That is, the mortar has a good fluidity during the mixing and injection operations, and in the static I state after the mortar is injected, the viscosity of the mortar increases quickly, and the separation of sand can be prevented.
  • the thickener to be used in the present invention includes polyvinyl alcohol, carboxymethylcellulose, starch, gelatine, etc., and mixtures thereof.
  • the thickener is used in an amount of 0.01 5.0 percent by weight based on the weight of cement.
  • the electrolyte to be used in the present invention includes sodium chloride, lithium chloride, potassium chloride, calcium chloride, magnesium chloride, barium chloride, etc., and mixtures thereof.
  • the electrolyte is used in an amount of 0.1 5.0 percent by weight based on the weight of cement.
  • the electrolyte prevents the decomposition of asphalt emulsion, and can prolong the time of gelation of mortar.
  • the foaming agent to be used in the present invention includes aluminum, aluminum nitride, zinc, tin, calcium silicon alloy, etc., and mixtures thereof.
  • foaming agent is used in an amount of 0.01 0.03 per-- cent by weight based on the weight of cement.
  • Theasphalt emulsion is used in an amount of 20 400 percent, preferably 300 percent by weight, based on the weight of cement.
  • the addition amount is less than 20 percent by weight.
  • the elasticity of the hardened mortar is too high, and the characteristic property of the cement asphalt is lost.
  • the addition amount exceeds 400 percent by weight, a very long time is required in the hardening of mortar.
  • the asphalt emulsion to be used in the present invention is stable against alkaline subacid salt, sulfuric acid ester of higher alcohol, sulfate of 5 aliphatic amine or aliphatic amide, phosphoric acid ester of aliphatic alcohol, and the like, and ones containing nonionic surfactants, such as polyoxyethylene alkyl ether, polyoxyethylene alkylpheno] ether, sorbitan aliphatic acid ester and the like, can be used in the present invention.
  • the mortar produced from the grout composition of the present invention is small in the variation of consistency, has a low sinking percentage even when the temperature is varied, and further does not cause separation of raw materials during the hardening, and the hardened mortar does not cause dry shrinkage. Accordingly, the grout composition of the present invention is an excellent cement asphalt ballast grout composition for directly joining-type track.
  • FIG. 1 is a perspective view of a slab track
  • FIG. 2 is a graph showing the consistency of mortar
  • FIG. 3 is a graph showing the sinking percentage of mortar
  • FIG. 4 is a graph showing the separation of raw mate rials in the hardened mortar.
  • FIG. 5 is a graph showing the shrinkage of the hardened mortar due to drying.
  • EXAMPLE 1 A mixture of 160 parts by weight of a cationic asphalt emulsion, l5 parts by weight of a powdery mineral (Blaine value: 6,000 cm /g) consisting mainly of 3CaO" 3Al O -CaSO,, 0.45 part by weight of lithium chloride, 0.1 part by weight of a blend of polyvinyl alcohol and carboxymethylcellulose in a ratio of 50:50 (by weight), 0.013 part by weight of powdery aluminum, 85 parts by weight of Portland cement, 200 parts by weight of sand and parts by weight of water'was mixed in a vertical type mixer.
  • a powdery mineral Blaine value: 6,000 cm /g
  • LiCaO 3Al O -CaSO
  • lithium chloride 0.1 part by weight of a blend of polyvinyl alcohol and carboxymethylcellulose in a ratio of 50:50 (by weight)
  • 0.013 part by weight of powdery aluminum 85 parts by weight of Portland cement
  • the flow time test was effected by changing the mixing time as shown in the following Table l.
  • the sinking percentage was measured by using a mortar which was prepared by mixing the raw material mixture for 20 minutes.
  • the tests for the separation of raw materials, the dry shrinkage, the compressive strength and the elasticity were effected by using a hardened mortar. which was prepared from the same mortar as used in the test for sinking percentage.
  • the test method are as follows.
  • the flow down time (unit: second) of a sample mortar through a J-funnel having a capacity of 700 ml and provided with a leg of 1 cm diameter is measured.
  • the sinking percentage is measured by a cylinder method at a mortar temperature of 5, 20 or 35C. 3. Separation of raw materials:
  • Samples are taken from the hardened mortar having a thickness of 50 mm at 10 mm intervals from the upper surface of the mortar. Each of the samples is extracted by means of a Soxhlets extractor, and the distribution of asphalt in the hardened mortar is measured.
  • the dry shrinkage is measured by a comparator method.
  • the elasticity is measured by means of an automatic elasticity measuring apparatus.
  • FIG. 2 shows a relation between the mixing time of a mortar and the flow down time (unit: second) of the mortar through the J-funnel.
  • the mortar of the present invention has a constant flow down time through the J-funnel within the range of 18 20 seconds.
  • FIG. 3 shows sinking percentages of a mortar kept at mina (purity: 99.5 percent), 11.9 parts by weight of calcium fluoride (purity: 95 percent). and 43.8 parts by weight of calcium carbonate (purity: 99 percent) was melted at a temperature of 1,400C and cooled, and the resulting melt was pulverized to a Blaine value of 6,000 cm /g. It was confirmed from the X-ray diffractiometry that this product was 3CaO-3Al O 'CaF mineral.
  • the above described calcium sulfoaluminate series mineral had a chemical composition as shown in the following Table 2.
  • FIG. 4 shows a relation between the distance from the upper surface ofa hardened mortar and the amount of asphalt contained in the hardened mortar at the distance.
  • the ordinate represents the unevenness of the amount of asphalt from the theoretical amount in the hardened mortar, and the mark means that the amount of asphalt is smaller than the theoretical amount and the mark means that the amount of asphalt is larger than the theoretical amount.
  • FIG. 5 shows a relation between the age (day) of a hardened mortar and the shrinkage of the hardened mortar due to drying. It is clear from FIG. 5 that the hardened mortar of the present invention does not shrink at all.
  • EXAMPLE 2 A mortar was prepared and tested under the same condition as described in Example 1, except that a powdery mixture of 13.5 parts by weight of a calcium sulfoaluminate series mineral and 1.5 partsby weight a mineral consisting mainly of 3CaO3Al O CaF was used as a calcium sulfoaluminate hydrate-forming mineral, and 0.45 part by weight of sodium chloride was used instead of lithium chloride.
  • a cement asphalt ballast grout composition for directly joining-type track which comprises 100 parts by weight of cement, 20 400 parts by weight of an asphalt emulsion, 5 20 parts by weight of a calcium sulfoaluminate hydrate-forming mineral, 0.1 5.0 parts by weight of an electrolyte, 0.01 5.0 parts by weight of a thickener and 0.01 0.03 part by weight of a foaming agent.
  • said calcium sulfoaluminate hydrate-forming mineral has such a property that a cement mortar prepared from the mineral and cement has a free expansion coefficient of 0.5 0.5.
  • said electrolyte is at least one compound selected from the group consisting of sodium chloride, potassium chloride, lithium chloride, calcium chloride, magnesium chloride and barium chloride.
  • said thickener is at least one compound selected from the group consisting of polyvinyl alcohol, carboxymethylcellulose, starch and gelatine.
  • said foaming agent is at least one compound selected from the group consisting of aluminum, aluminum nitride, zinc, tin and calcium silicon alloy.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
US400992A 1972-09-26 1973-09-26 Cement asphalt ballast grout composition for track Expired - Lifetime US3867161A (en)

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JP47095790A JPS515849B2 (de) 1972-09-26 1972-09-26

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JP (1) JPS515849B2 (de)
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060425A (en) * 1975-04-05 1977-11-29 Japanese National Railways Super rapid hardening mixture
US4084981A (en) * 1973-10-04 1978-04-18 Japanese National Railways Quick hardening cement-asphalt composition
US4094694A (en) * 1976-03-24 1978-06-13 United States Gypsum Company Water-resistant gypsum composition and products, and process of making same
US5007965A (en) * 1989-05-31 1991-04-16 Kansai Engineering Co., Ltd. Material for treating heavy metals and metal ions
US20120073813A1 (en) * 2010-09-28 2012-03-29 Clearwater International, Llc Novel Weight Materials for Use in Cement, Spacer and Drilling Fluids
WO2015032483A1 (en) * 2013-09-03 2015-03-12 Heidelbergcement Ag Binder comprising calcium sulfoaluminate cement and a magnesium compound
CN109797621A (zh) * 2019-01-17 2019-05-24 江苏瑞沃建设集团有限公司 一种高强度复合路面及其施工工艺
CN113213813A (zh) * 2021-04-22 2021-08-06 东南大学 应用于预制弹性道床结构的沥青混凝土、试样及制备方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5715989Y2 (de) * 1977-05-18 1982-04-02
AT379574B (de) * 1983-09-21 1986-01-27 Oemv Ag Baustoffmischung auf basis von hydraulischen bindemitteln, ueblichen zusaetzen und zuschlaegen, sowie mit einem gehalt an einer bitumen/kunststoffkombination
JPS61170698U (de) * 1985-04-11 1986-10-23
DE102006039901A1 (de) * 2006-08-25 2008-02-28 Renate Marquardt Neuartige hoch wasserhaltige Polyurethane, Verfahren zur ihrer Herstellung und Anwendung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1889437A (en) * 1928-11-17 1932-11-29 Flintkote Co Process for the manufacture of a bituminous cement mortar, cement concrete and the like
US2560871A (en) * 1948-04-28 1951-07-17 Higgins Inc Method of mixing cement composition
US2773777A (en) * 1953-12-30 1956-12-11 Shell Dev Bituminous compositions
US3155526A (en) * 1961-10-18 1964-11-03 Chem Prestressed Concrete Calcium aluminosulfate and expansive cements containing same
US3510326A (en) * 1965-12-24 1970-05-05 Minoru Miki Expansive cement and the method of producing such cement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1889437A (en) * 1928-11-17 1932-11-29 Flintkote Co Process for the manufacture of a bituminous cement mortar, cement concrete and the like
US2560871A (en) * 1948-04-28 1951-07-17 Higgins Inc Method of mixing cement composition
US2773777A (en) * 1953-12-30 1956-12-11 Shell Dev Bituminous compositions
US3155526A (en) * 1961-10-18 1964-11-03 Chem Prestressed Concrete Calcium aluminosulfate and expansive cements containing same
US3510326A (en) * 1965-12-24 1970-05-05 Minoru Miki Expansive cement and the method of producing such cement

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084981A (en) * 1973-10-04 1978-04-18 Japanese National Railways Quick hardening cement-asphalt composition
US4060425A (en) * 1975-04-05 1977-11-29 Japanese National Railways Super rapid hardening mixture
US4094694A (en) * 1976-03-24 1978-06-13 United States Gypsum Company Water-resistant gypsum composition and products, and process of making same
US5007965A (en) * 1989-05-31 1991-04-16 Kansai Engineering Co., Ltd. Material for treating heavy metals and metal ions
US20120073813A1 (en) * 2010-09-28 2012-03-29 Clearwater International, Llc Novel Weight Materials for Use in Cement, Spacer and Drilling Fluids
US9062241B2 (en) * 2010-09-28 2015-06-23 Clearwater International Llc Weight materials for use in cement, spacer and drilling fluids
WO2015032483A1 (en) * 2013-09-03 2015-03-12 Heidelbergcement Ag Binder comprising calcium sulfoaluminate cement and a magnesium compound
US20160207834A1 (en) * 2013-09-03 2016-07-21 Heidelbergcement Ag Binder comprising calcium sulfoaluminate cement and a magnesium compound
EA031750B1 (ru) * 2013-09-03 2019-02-28 Хайдельбергцемент Аг Вяжущее вещество, содержащее цемент на основе сульфоалюмината кальция и магниевый компонент
CN109797621A (zh) * 2019-01-17 2019-05-24 江苏瑞沃建设集团有限公司 一种高强度复合路面及其施工工艺
CN113213813A (zh) * 2021-04-22 2021-08-06 东南大学 应用于预制弹性道床结构的沥青混凝土、试样及制备方法

Also Published As

Publication number Publication date
FR2208859B1 (de) 1976-10-01
DE2348236C3 (de) 1979-12-06
FR2208859A1 (de) 1974-06-28
DE2348236A1 (de) 1974-04-18
DE2348236B2 (de) 1979-04-12
JPS4953619A (de) 1974-05-24
JPS515849B2 (de) 1976-02-23

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