Showing papers on "Mortar published in 1983"
TL;DR: In this article, the effects of masonry and lightweight concrete infills on R/C moment existing frame buildings were studied experimentally and analytically, and the most promising panel configuration consisted of solid brick laid in mortar reinforced with two mats of welded wire fabric, one bonded to each side of the wall in a layer of cement stucco (mortar).
Abstract: This paper summarizes studies in which the effects of masonry and lightweight concrete infills on R/C moment existing frame buildings were studied experimentally and analytically. The experimental investigation consisted of a series of quasi‐static cyclic and monotonic load tests on 1/3‐scale models of the lower 3‐1/2 stories of an 11 story‐three bay reinforced concrete frame infilled in the outer two bays. Different panel material and reinforcement combinations were tested. For reasons of economy, ease of construction, favorable mechanical properties, and efficiency of different types of masonry infill, it was concluded that the most promising panel configuration consisted of solid brick laid in mortar reinforced with two mats of welded wire fabric, one bonded to each side of the wall in a layer of cement stucco (mortar). The implications of these experimentally obtained results are analyzed by investigating how the infills affect the dynamic response of R/C moment resisting frame buildings, as well as c...
147 citations
TL;DR: In this paper, an experimental investigation was conducted on a cement mortar reinforced with woven bamboo mesh in a manner similar to ferrocement, and the results of the tests conducted in direct tension, flexure and impact were presented and discussed.
83 citations
TL;DR: In this article, the effects of strain rate of loading including impact on the bending properties of steel fibre reinforced mortar are studied using an instrumented drop-weight impact machine, and it is found that depending on the fibre reinforcing parameters the energy absorbed by the composite at static loading rates can be one to two orders of magnitude higher than that of the unreinforced matrix.
63 citations
TL;DR: In this article, the effect of applying tensile stresses to pre-cracked fiber reinforced mortar specimens is examined after exposure to natural weathering and to indoor storage for periods up to 2 years.
44 citations
01 May 1983
32 citations
TL;DR: In this article, black gram, used as binder in mortar and plaster in ancient time in India, was mixed in cement mortar, structural ligthweight aggregate concrete and normal concrete and it was seen that it worked like air entraining agent, has improved the adhesiveness and hydrophobicity of concrete.
30 citations
Journal Article•
TL;DR: An experimental study was carried out to develop a durable cement-asphalt mortar as an under-slab filling for tracks on Tohoku and Joetsu Shinkansen lines in Japan as discussed by the authors.
Abstract: An experimental study was carried out to develop a durable cement-asphalt mortar as an under-slab filling for tracks on Tohoku and Joetsu Shinkansen lines in Japan. The study has revealed that development of durable cement-asphalt mortar will be possible by introducing entrained-air. This paper gives an outline of the development and experimental study of cement-asphalt mortar characterized by anti-freezing and thawing, mechanical properties, construction methods, and related subjects.
28 citations
Book•
01 Jan 1983
TL;DR: A basic guide for conservators is given in this paper, where different material types, additives, reinforcement, aggregates are described with the help of clear didactic drawings and a products suppliers' list for england is provided.
Abstract: A basic guide for conservators. Different material types, additives, reinforcement, aggregates are described. Repairs and maintenance; mortar joints, external rendering internal plastering, painting are exemplified with the help of clear didactic drawings. A products suppliers' list for england is provided. -- ICCROM
28 citations
Patent•
09 Dec 1983
TL;DR: In this paper, a method for repairing and restoring a deteriorated cement-containing inorganic material such as reinforced concrete by applying a solution of a water-soluble silicate compound to its surface to have it impregnated with said solution, and then topcoating said material with cement paste or/and mortar.
Abstract: A method for repairing and restoring a deteriorated cement-containing inorganic material such as reinforced concrete by applying a solution of a water-soluble silicate compound to its surface to have it impregnated with said solution, and then topcoating said material with cement paste or/and mortar.
23 citations
Patent•
05 Dec 1983
TL;DR: In this paper, a multicomponent additive comprising microsilica which has been stabilized by means of one or more water reducing agents alone or in combination is used as additive to cement and mortar and results in an improvement of plasticity, workability and strength as compared to usual cements and mortars.
Abstract: A multicomponent additive comprises microsilica which has been stabilized by means of one or more water reducing agents alone or in combination. This mixture is especially of advantage as additive to cement and mortar and results in an improvement of plasticity, workability and strength as compared to usual cements and mortars. The additive can be mixed with water whereupon more microsilica is added for formation of a slurry.
Patent•
20 May 1983
TL;DR: In this paper, a filiform addition for concrete or mortar consisting of a filament or a filament bundle is described, which carries at least one body having a diameter larger than the thickness of the filament or filament bundle.
Abstract: The invention relates to a filiform addition for concrete or mortar consisting of a filament or a filament bundle. The filament or filament bundle carries at least one body having a diameter larger than the thickness of the filament or filament bundle. At the same time, the length of the filament or filament bundle is greater than the diameter of the body.
Patent•
01 Sep 1983
TL;DR: In this article, a textile reinforcement made of a wide-meshed woven or knitted fabric which is finished so as to be saponification-resistant and non-slip is described.
Abstract: 1. Mortar with mineral binding agents or covering material with organic binding agents with a textile reinforcement made of a wide-meshed woven or knitted fabric which is finished so as to be saponification-resistant and non-slip, characterised in that the weft thread of the woven or knitted fabric is a twisted thread and the woven or knitted fabric has an elasticity of at least 3% in the longitudinal and transverse direction and has a tear resistance of at least 1200 N per 5 cm width in both directions.
Patent•
10 Feb 1983
TL;DR: A distributor head for throwing mortar onto the wall of a pipe (12) being lined is described in this paper, where a set of inner rotating vanes (56) throw the mortar onto an outwardly flared conical surface and the mortar travels along the surface to the outer vanes on its outer edge from which the mortar is thrown in a high velocity, dense stream against the pipe wall.
Abstract: A distributor head for throwing mortar onto the wall of a pipe (12) being lined. A set of inner rotating vanes (56) throw the mortar onto an outwardly flared conical surface (40 and the mortar travels along the surface (40) to the outer vanes (48) on its outer edge from which the mortar is thrown in a high velocity, dense stream against the pipe wall. The inner vanes are individually and releaseably fitted into a collar (60) at the inner edge of the flared conical surface.
TL;DR: In this article, the effect of hot-humid climate on compressive strength of mortar was investigated and the results showed that prolonged exposure to hot-hued climate affects adversely the later age strengths.
TL;DR: In this paper, the effect of pulverized fuel ash (pfa) upon the expansion of mortar bars containing Beltane opal and stored at 38°C was investigated.
Abstract: Synopsis The effect of pulverized-fuel ash (pfa) upon the expansion of mortar bars containing Beltane opal and stored at 38°C has been investigated. The alkali level in the mortar bars was kept con...
01 Jul 1983
TL;DR: In this paper, the effectiveness of the mortar bar ASTM C227 and concrete prism CSA A23 tests for evaluating the potential alkali-aggregate reactivity of classical alkali silica, late expansive siliceous and alkali carbonate aggregates is discussed.
Abstract: The effectiveness of the mortar bar ASTM C227 and concrete prism CSA A23. 2-14A tests for evaluating the potential alkali-aggregate reactivity of classical alkali-silica, late expansive siliceous and alkali-carbonate aggregates is discussed. It is emphasized that petrographic examination is an essential preliminary step in the evaluation of potential alkali reactivity of all aggregates. The expansion limits set to differentiate between deleteriously expansive and innocuous cement-aggregate combinations by ASTM, CSA, U.S. Corps of Engineers, U.S. Bureau of Reclamation and by the author are evaluated for use with classical alkali-silica, late-expanding siliceous and alkali-carbonate reactive aggregates.
Patent•
17 Aug 1983
TL;DR: In this paper, a mixed solution having durability of adhesiveness as mortar for tiling and resistance of application to mortar, obtained by adding specific nonionic surface active agent to an emulsion of a resin, is presented.
Abstract: PURPOSE:The titled mixed solution having durability of adhesiveness as mortar for tiling and resistance of application to mortar, obtained by adding specific nonionic surface active agent to an emulsion of a resin. CONSTITUTION:(A) 100pts.wt. emulsion (e.g., emulsion of styrene-butadiene- based resin) of a resin obtained by subjecting monomers consisting of one or more of (meth) acrylic acid alkyl ester, vinyl acetate, styrene, ethylene and butadiene as main components to emulsion polymerization is blended with (B) 8-25pts.wt. nonionic surface active agent (e.., a condensate of an alkylphneol and polyethylene glycol, etc.) having >=15, preferably >=18 HLB, to give the desired mixed solution.
Patent•
08 Nov 1983
TL;DR: In this article, a hydraulic cement mortar comprising uniformly dispersed reinforcing fibrillated plastics filaments having a micro-fibrilated structure, and elements manufactured therefrom with mechanical isotropic properties is described.
Abstract: @ A hydraulic cement mortar comprising uniformly dispersed reinforcing fibrillated plastics filaments having a microfibrillated structure, and elements manufactured therefrom with mechanical isotropic properties, said microfibrillated filaments consisting of sections shredded from non-twisted fibrillated ribbons, said fibrillated ribbons having been split apart and subjected to microfibrillation by stirring mortar compounds and said filaments. Also disclosed is a process for manufacturing said elements.
Patent•
07 Oct 1983
TL;DR: In this paper, a fire-extinguishing material capable of being employed especially as coating mortar extinguishing sodium fires is described, which comprises from 80 to 76 % by weight of granulates of inorganic compounds, from 14 to 13 % by value of hydraulic binder, from 4.5 to 4 % by length of bound water and from 1.5-6.5 % by size of graphite insertion compound.
Abstract: Fire-extinguishing material capable of being employed especially as coating mortar extinguishing sodium fires. This material comprises from 80 to 76 % by weight of granulates of inorganic compounds, from 14 to 13 % by weight of hydraulic binder, from 4.5 to 4 % by weight of bound water and from 1.5 to 6.5 % by weight of a graphite insertion compound consisting, for example, of a complex of graphite and sulphuric acid containing 8 % by weight of sulphuric acid. When this material is heated to a temperature of at least approximately 180 DEG C, it releases the graphite insertion compound in the form of a foam which extinguishes the fire.
Patent•
29 Sep 1983TL;DR: In this article, a method of hardening and rendering wear resistant a concrete structure such as a floor comprising of a mixture of Portland cement and particles of ferrosilicon material at the surface of the structure and thereafter troweling the mixture to a smooth surface.
Abstract: A floor topping, mortar and grout which include ferrosilicon in particle form. The ferrosilicon increases the wear resistance and impact strength of the topping, mortar or grout without the oxidation or discoloration normally attributable to materials which include iron borings. In addition, the ferrosilicon increases the light reflectivity of the topping material. A method of hardening and rendering wear resistant a concrete structure such as a floor comprising the placement of a mixture of Portland cement and particles of ferrosilicon material at the surface of the structure and thereafter troweling the mixture to a smooth surface.
Patent•
14 Jun 1983
TL;DR: In this paper, an infrared ray temperature measuring device is used to obtain a thermal image or thermal photograph in the measurement of the wall surface, which can be used to ensure the check for the repair work.
Abstract: PURPOSE:To ensure the checking of the repair work, when the swelled part of the outer coating such as the mortar is repaired, by ensuring the judgment of said outer surface based on temperature distribution CONSTITUTION:The mortar 2, which is applied on a groundwork 1 such as concrete, is partially swelled up on the surface of a wall Then the temperature distribution corresponding to the swelling is yielded By measuring the temperature distribution, the swelled part of the mortar is checked In repairing the wall, a hole is provided at the approximately central part of the swelled part of the mortar 2 An epoxy resin 5 is injected so as to bury the hollow part, and the resin 5 is hardened Then the groundwork 1 and the swelled mortar 2 are fixed and the repair is completed At this time, an infrared ray temperature measuring device is used to obtain a thermal image or a thermal photograph in the measurement of the temperature distribution of the wall surface Thus the check for the repair work can be ensured by the simple means
TL;DR: In this paper, reaction products by fly ash-phosphoric acid mixtures of two fly ashes were studied by x-ray diffraction measurements, and fly ash was used to produce a cement for studying compressive strength of mortars prepared with Ottawa sand.
Abstract: Reaction products by fly ash-phosphoric acid mixtures of two fly ashes were studied by x-ray diffraction measurements. Fly ash was used to produce a cement for studying compressive strength of mortars prepared with Ottawa sand.
Patent•
24 Jun 1983
TL;DR: In this paper, a novel multi-purpose dry mortar composition comprises Portland cement, fine grained stone or marble flour, a surfactant and a dry adhesive pre-mixed in dry form which can be bagged along with water and masonry sand at the plant or added at the job site to form one coat or base coat finishes for interior and exterior use
Abstract: A novel multi-purpose dry mortar composition comprises Portland cement, fine grained stone or marble flour, a surfactant and a dry adhesive pre-mixed in dry form which can be bagged along with masonry sand at the plant or water and masonry sand can be added at the job site to form one coat or base coat finishes for interior and exterior use
Patent•
27 Jan 1983
TL;DR: Vibrating device for compacting and levelling concrete has an electric motor 24 mounted on a base plate 22 and which drives an unbalance. Runners 38 are arranged beneath this base plate as discussed by the authors.
Abstract: Vibrating device for compacting and levelling concrete has an electric motor 24 mounted on a base plate 22 and which drives an unbalance. Runners 38 are arranged beneath this base plate. On drawing the device through a mortar layer and with the electric motor running, vibrations are introduced into the said layer by the runners. The layer is compacted and at the same time levelled. Smoothing cloths 78 are arranged at either end of the base plate for further smoothing the mortar layer surface.
01 Jan 1983
TL;DR: In this article, the key aspects of the design of in-situ cast mortar-filled armor units of marine structures are discussed and the basic strength criteria as well as other criteria to be met by the mortar are highlighted.
Abstract: The key aspects of the design of in-situ cast mortar filled armor units of marine structures are discussed. The basic strength criteria sa well as other criteria to be met by the mortar are highlighted.