GB1217003A - Lightweight aggregate - Google Patents

Lightweight aggregate

Info

Publication number
GB1217003A
GB1217003A GB779468A GB779468A GB1217003A GB 1217003 A GB1217003 A GB 1217003A GB 779468 A GB779468 A GB 779468A GB 779468 A GB779468 A GB 779468A GB 1217003 A GB1217003 A GB 1217003A
Authority
GB
United Kingdom
Prior art keywords
bed
sintering
inch
zone
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB779468A
Inventor
William Davies
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
John G Stein and Co Ltd
Original Assignee
John G Stein and Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by John G Stein and Co Ltd filed Critical John G Stein and Co Ltd
Priority to GB779468A priority Critical patent/GB1217003A/en
Priority to NL6902104A priority patent/NL6902104A/xx
Priority to FR6903556A priority patent/FR2002027A1/fr
Priority to BE728408D priority patent/BE728408A/xx
Priority to DE19691907845 priority patent/DE1907845A1/en
Publication of GB1217003A publication Critical patent/GB1217003A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/04—Heat treatment
    • C04B20/06—Expanding clay, perlite, vermiculite or like granular materials
    • C04B20/063—Expanding clay, perlite, vermiculite or like granular materials by grate sintering

Abstract

1,217,003. Porous aggregates. JOHN G. STEIN & CO. Ltd. 10 Feb., 1969 [16 Feb., 1968], No. 7794/68. Headings C1A and C1H. Hard, strong, porous aggregates are formed by sintering clay, shale, slate or like watercontaining material and containing solid combustible matter by igniting the bed by a flame and drawing air through the bed so that sintering occurs in a zone that moves vertically downwards through the bed, the flame being applied to the bed at least until the sintering zone is about 5 inches below the surface, the ratio of air to fuel in the burning zone being increased but not decreased during this time, the sintering being continued by drawing air through the bed, no part of the bed being shock-cooled by contact with cold air. The charge may also include a material which acts as a flux at the sintering temperature, and carbonaceous fuel. Preferably the sintering is carried out downwardly on a stationary grate, the surface of the bed being raised as quickly as possible to the sintering temperature by igniting the bed by means of a burner hood fired by gas or oil. Alternatively a moving grate may be used with a succession of hoods of different temperatures. The charge may consist of pellets formed by moistening and rolling in a drum mixer, up to ¢ inch diameter made of - # inch particles. Alternatively, a plastic mass, made up of - # inch particles and water is broken up into strips up to 1 inch across and ¢ inch thick, and has carbonaceous fuel coated on each side. The amount of carbonaceous material added should be sufficient for the endothermic requirements of the sintering process. 1 part of cement is mixed with 2 parts of - <SP>3</SP>/ 16 and 2 parts of - # + <SP>3</SP>/ 16 of the above aggregate.
GB779468A 1968-02-16 1968-02-16 Lightweight aggregate Expired GB1217003A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB779468A GB1217003A (en) 1968-02-16 1968-02-16 Lightweight aggregate
NL6902104A NL6902104A (en) 1968-02-16 1969-02-11
FR6903556A FR2002027A1 (en) 1968-02-16 1969-02-14
BE728408D BE728408A (en) 1968-02-16 1969-02-14
DE19691907845 DE1907845A1 (en) 1968-02-16 1969-02-17 Process for the production of lightweight building materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB779468A GB1217003A (en) 1968-02-16 1968-02-16 Lightweight aggregate

Publications (1)

Publication Number Publication Date
GB1217003A true GB1217003A (en) 1970-12-23

Family

ID=9839871

Family Applications (1)

Application Number Title Priority Date Filing Date
GB779468A Expired GB1217003A (en) 1968-02-16 1968-02-16 Lightweight aggregate

Country Status (5)

Country Link
BE (1) BE728408A (en)
DE (1) DE1907845A1 (en)
FR (1) FR2002027A1 (en)
GB (1) GB1217003A (en)
NL (1) NL6902104A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2267488A (en) * 1992-05-28 1993-12-08 Liew Sing Chin Composite concrete structures

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8528902D0 (en) * 1985-11-23 1986-01-02 Greaves & Sons Ltd J W Treatment of expansible materials
CN114990329B (en) * 2022-05-26 2023-10-24 中南大学 Method for preparing high-strength lightweight aggregate by pellet roasting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2267488A (en) * 1992-05-28 1993-12-08 Liew Sing Chin Composite concrete structures

Also Published As

Publication number Publication date
DE1907845A1 (en) 1969-09-18
FR2002027A1 (en) 1969-10-03
BE728408A (en) 1969-08-14
NL6902104A (en) 1969-08-19

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