序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 一种植被型多孔混凝土的制备方法 CN200810029354.3 2008-07-10 CN101318795A 2008-12-10 余其俊; 李荣炜; 韦江雄
一种植被型多孔混凝土的制备方法,采用“预包裹”技术,将具有特定组成的浆体包裹粗骨料,形成粒径较均匀的球体,以这些球体的物理堆聚及其表层浆体的胶结作用,形成固相间胶结良好且气相连通的多孔、大孔结构。具体制备步骤是:(1)确定包裹骨料的浆体流动度和粘度范围,通过绝对体积法算出配合比;(2)采用四步搅拌工序和振捣与加压相结合的成型方式;(3)对孔隙进行封处理。本发明克服传统方法中浆体向下流动所导致的孔隙分布不均匀和不连续孔隙增多以及混凝土孔隙中碱度偏高不利于植物生长的难题。本发明制备的植被型多孔混凝土可应用于高速公路的路肩隔板、建筑屋顶、防岸护坡、停车场等部位,具有良好的景观效应和生态环保意义。
2 脱羟基处理的方法和设备 CN02808580.9 2002-02-06 CN1295148C 2007-01-17 G·卡多雷特
发明涉及脱羟基处理的方法和设备,其中含有硅酸铝的颗粒置于至少500℃的温度。颗粒是干粉形式,干粉(26)任选在600-850℃的气流(30)中输送,输送时间足以达到所需要的脱羟基度。粉末可由合基体浆料通过下述方法制成:将基体浆料减小成碎片(23),在500-800℃的热气(24)中通过机械作用(在3处)解聚碎片(23),以形成干粉(26)。
3 脱羟基处理的方法和设备 CN02808580.9 2002-02-06 CN1503764A 2004-06-09 G·卡多雷特
发明涉及脱羟基处理的方法和设备,其中含有硅酸铝的颗粒置于至少500℃的温度。颗粒是干粉形式,干粉(26)任选在600-850℃的气流(30)中输送,输送时间足以达到所需要的脱羟基度。粉末可由合基体浆料通过下述方法制成:将基体浆料减小成碎片(23),在500-800℃的热气(24)中通过机械作用(在3处)解聚碎片(23),以形成干粉(26)。
4 一种植被型多孔混凝土的制备方法 CN200810029354.3 2008-07-10 CN101318795B 2011-09-14 余其俊; 李荣炜; 韦江雄
一种植被型多孔混凝土的制备方法,采用“预包裹”技术,将具有特定组成的浆体包裹粗骨料,形成粒径较均匀的球体,以这些球体的物理堆聚及其表层浆体的胶结作用,形成固相间胶结良好且气相连通的多孔、大孔结构。具体制备步骤是:(1)确定包裹骨料的浆体流动度和粘度范围,通过绝对体积法算出配合比;(2)采用四步搅拌工序和振捣与加压相结合的成型方式;(3)对孔隙进行封处理。本发明克服传统方法中浆体向下流动所导致的孔隙分布不均匀和不连续孔隙增多以及混凝土孔隙中碱度偏高不利于植物生长的难题。本发明制备的植被型多孔混凝土可应用于高速公路的路肩隔板、建筑屋顶、防岸护坡、停车场等部位,具有良好的景观效应和生态环保意义。
5 一种改进固化泥产品的方法 CN96194546.X 1996-06-03 CN1046690C 1999-11-24 R·H·琼斯
固化泥基质与高压密相或超临界CO2接触,超临界CO2通过基质通道进入基质,中和水泥固有的度,使不耐碱材料可加入水泥。CO2将水泥中氢转变成酸钙和水,而密相或超临界CO2的高压形成圆形紧密堆积排列的晶粒,其间很少或没有可见的孔和毛细管,增强了固化水泥的均匀性,强度和其与未涂布的增强玻璃纤维的结合。超临界CO2可将溶解或悬浮的有机或无机材料,包括粉末化金属,传递入水泥基质的内部,改变其化学和/或物理特性。
6 用高压CO2处理的 CN96194546.X 1996-06-03 CN1187179A 1998-07-08 R·H·琼斯
固化泥基质与高压密相或超临界CO2接触,超临界CO2通过基质通道进入基质,中和水泥固有的度,使不耐碱材料可加入水泥。CO2将水泥中氢转变成酸钙和水,而密相或超临界CO2的高压形成圆形坚密堆积排列的晶粒,其间很少或没有可见的孔和毛细管,增强了固化水泥的均匀性,强度和其与未涂布的增强玻璃纤维的结合。超临界CO2可将溶解或悬浮的有机或无机材料,包括粉末化金属,传递入水泥基质的内部,改变其化学和/或物理特性。
7 METHODS FOR FINISHING CONCRETE TO PROVIDE A GLOSSY SURFACE US15442506 2017-02-24 US20170158570A1 2017-06-08 Mark Wetherell; Dal N. Hills; Kent Barrus
Systems and methods for treating concrete, which include wetting a surface of concrete with a colloidal silica and, with silica on the surface, finishing the surface. The surface may be finished with a power trowel.
8 Method of resisting corrosion in metal reinforcing elements contained in concrete and related compounds and structures US10817605 2004-04-02 US07081156B2 2006-07-25 Paul W. Brown
A method of resisting corrosion of metal elements in concrete is provided. It includes introducing into concrete containing metal elements, at least one combination compound capable of sequestering chloride ions having the formula 3Me(II)O.(R,R′)2O3.Me(II)(anion)2.nH2O, where R and R′ are different and are independently selected from the group consisting of Al, Fe and Cr; anion is selected from the group consisting of NO2, NO3 and OH, n is 0 to 24, and Me(II) is a cation and is selected from the group consisting of Ca, Ba, Sr, Mn, Zn and combinations thereof. In one embodiment of the invention, concrete structures may be rehabilitated by providing an overlay containing the combination compound, with the overlay being provided in situ or as a preformed member and with possible use of a slurry in combination with an overlay segment.
9 Direct sequestration of chloride ions US11078170 2005-03-11 US07074263B2 2006-07-11 Paul W. Brown
The present invention provides methods and compounds for the direct sequestration of chloride ions without requiring the addition of a source of anion such as nitrite or nitrate. A direct sequestration additive is introduced to fresh concrete or hardened concrete where the additive reacts with incoming chloride ions to form a low solubility, chloride-containing compound which captures or sequesters chloride ions. In a preferred embodiment, the chloride-containing compound comprises 3CaO.Fe(2-x)AlxO3.CaCl2.nH2O, where x ranges from about 0 to 1.4, and n ranges from about 8 to 24. The chloride ions may be provided in the form of deicing salt or sea water. Because chloride-containing compounds such as 3CaO.Fe(2-x)AlxO3.CaCl2.nH2O are formed directly without requiring the addition of a source of anion (e.g. nitrite or nitrate), the process is referred to as “direct sequestration.”
10 Direct sequestration of chloride ions US11078170 2005-03-11 US20050211137A1 2005-09-29 Paul Brown
The present invention provides methods and compounds for the direct sequestration of chloride ions without requiring the addition of a source of anion such as nitrite or nitrate. A direct sequestration additive is introduced to fresh concrete or hardened concrete where the additive reacts with incoming chloride ions to form a low solubility, chloride-containing compound which captures or sequesters chloride ions. In a preferred embodiment, the chloride-containing compound comprises 3CaO.Fe(2-x)AlxO3.CaCl2.nH2O, where x ranges from about 0 to 1.4, and n ranges from about 8 to 24. The chloride ions may be provided in the form of deicing salt or sea water. Because chloride-containing compounds such as 3CaO.Fe(2-x)AlxO3.CaCl2.nH2O are formed directly without requiring the addition of a source of anion (e.g. nitrite or nitrate), the process is referred to as “direct sequestration.”
11 Method of resisting corrosion in metal reinforcing elements contained in concrete and related compounds and structures US10866948 2004-06-14 US20040231565A1 2004-11-25 Paul Brown
In some embodiments, alternate sources of aluminum or calcium are provided in various ways including the desired compounds. The further object of the present invention contemplate in situ creation of the compound in interest in fresh concrete and as a slurry which can be employed in remediation of existing concrete structures. A method of resisting corrosion in concrete containing metal elements is provided. It includes introducing into fresh concrete, containing metal elements, at least one compound capable of sequestering chloride ions. The method may also involve employing a compound which is capable of establishing a corrosion resistant oxide layer on the metal reinforcing elements. The invention also includes certain compounds which may be employed in the method as well as concrete structures containing the compounds. In another embodiment of the invention, concrete structures may be rehabilitated by providing an overlay containing a compound of the type which will contribute to corrosion resistance either through chloride ion sequestering or creating barriers around metal structural elements with the overlay being provided in situ or as a preformed member and with possible use of a slurry in combination with an overlay segment. In another embodiment, a source of alumina is combined in solution with Ca(NO2)2 and/or NaNO2 with the resultant solution being introduced into the pores of a concrete structure, preferably under pressure to cause them to react with each other and with Ca(OH)2 contained within the concrete to produce the desired corrosion inhibiting compound.
12 Mixture of silica sols US10411837 2003-04-11 US06764543B2 2004-07-20 Peter Greenwood; Hans Bergqvist; Ulf Skarp
The invention concerns silica sol mixture comprising a first silica sol having a broad particle size distribution, the relative standard deviation being at least about 30% by numbers, and a second silica sol having a narrow particle size distribution having a relative standard deviation lower than about 15% by numbers. The invention also concerns a method for preparing a silica sol mixture and use thereof. The invention further concerns a concrete composition comprising a silica sol mixture and a method for preparing such composition.
13 Method and installation for the dehydroxylation treatment of aluminium silicate US10468602 2004-02-11 US20040129177A1 2004-07-08 Gael Cadoret
The invention concerns a process and an installation for dehydroxylation treatment of aluminium silicate, in which particles containing aluminium silicate are exposed to a temperature of at least 500null C. The particles are in the form of a dry powder, and the dry powder (26) is optionally transported in a gas stream (30) at a temperature of from 600 to 850null C., for a time which is sufficient to achieve the desired degree of dehydroxylation. The powder may be obtained from a hydrated base paste by reducing the base paste into fragments (23), and by disaggregating the fragments (23) of base paste by mechanical action (at 3) in the presence of a hot gas (24) at a temperature of from 500null C. to 800null C., in order to form the dry powder (26).
14 Method of resisting corrosion in metal reinforcing elements contained in concrete and related compounds and structures US10047226 2002-01-14 US06755925B1 2004-06-29 Paul Brown
In some embodiments, alternate sources of aluminum or calcium are provided in various ways including the desired compounds. The further object of the present invention contemplate in situ creation of the compound in interest in fresh concrete and as a slurry which can be employed in remediation of existing concrete structures. A method of resisting corrosion in concrete containing metal elements is provided. It includes introducing into fresh concrete, containing metal elements, at least one compound capable of sequestering chloride ions. The method may also involve employing a compound which is capable of establishing a corrosion resistant oxide layer on the metal reinforcing elements. The invention also includes certain compounds which may be employed in the method as well as concrete structures containing the compounds. In another embodiment of the invention, concrete structures may be rehabilitated by providing an overlay containing a compound of the type which will contribute to corrosion resistance either through chloride ion sequestering or creating barriers around metal structural elements with the overlay being provided in situ or as a preformed member and with possible use of a slurry in combination with an overlay segment. In another embodiment, a source of alumina is combined in solution with Ca(NO2)2 and/or NaNO2 with the resultant solution being introduced into the pores of a concrete structure, preferably under pressure to cause them to react with each other and with Ca(OH)2 contained within the concrete to produce the desired corrosion inhibiting compound.
15 Mixture of silica sols US10411837 2003-04-11 US20030200902A1 2003-10-30 Peter Greenwood; Hans Bergqvist; Ulf Skarp
The invention concerns silica sol mixture comprising a first silica sol having a broad particle size distribution, the relative standard deviation being at least about 30% by numbers, and a second silica sol having a narrow particle size distribution having a relative standard deviation lower than about 15% by numbers. The invention also concerns a method for preparing a silica sol mixture and use thereof. The invention further concerns a concrete composition comprising a silica sol mixture and a method for preparing such composition.
16 Low pH compositions for hardening concrete and associated methods US13794516 2013-03-11 US09579764B1 2017-02-28 Mark Wetherell; Dal N. Hills; Kent Barrus
Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with a colloidal silica; cutting the softened surface to provide a cut surface; and polishing the cut surface.
17 Low pH compositions for hardening concrete and associated methods US12366584 2009-02-05 US08852334B1 2014-10-07 Dal N. Hills; Kent Barrus
A composition for hardening concrete that has a pH of less than 10, and may have a pH of 8 or less. Thus, the hardening composition may be free of or substantially free of alkaline materials. The hardening composition is water-based and includes silica particles and an aluminum-based (e.g., alumina, etc.) stabilizer, which may be present on portions of the surfaces of the silica particles. In use, the hardening composition is applied to the surface of concrete, either alone, with curing compounds, or as part of a polishing process. Any residue that remains on the treated surface may simply be swept, blown, or sprayed away.
18 Method of fabrication of construction materials from industrial solid waste US13506210 2012-04-04 US08535435B2 2013-09-17 Magdi M. Nasrallah; Raouf O. Loutfy
A low-pressure method for producing construction materials, such as blocks, bricks or slabs, utilizing high percentages of waste cement dust in admixture with additive material capable of effectively neutralizing the high lime content and agglomerating the extremely fine particles of the cement dust upon blending of the admixture with water. The resulting blend may simply be cast in molds of various shapes and sizes and cured under normal atmospheric pressure conditions into a hardened construction material exhibiting high strength, light weight and high thermal insulation.
19 Method of improving material comprising a pozzolanic component US10507869 2003-03-19 US07438756B2 2008-10-21 Joseph Jan Peter Biermann; Nicolaas Voogt
The invention relates to a method of improving a material comprising a pozzolanic component. According to the invention the material is treated with an aqueous liquid resulting in treated, calcium-depleted material and a calcium-enriched aqueous solution, which are subsequently separated. This provides a material having an increased pozzolanity and/or increased specific surface area.
20 In situ formation of chloride sequestering compounds US11078814 2005-03-11 US07393406B2 2008-07-01 Paul W. Brown
The present invention provides methods and compounds for the in situ formation in concrete of chloride sequestering compounds that resist corrosion of metals contained within the concrete. These chloride sequestering compounds may include, but are not limited to, compounds having the formula 3CaO.Fe(2-x)AlxO3.Ca(NO2)2.nH2O and 3CaO.Fe(2-x)AlxO3.Ca(NO3)2.nH2O, where x ranges from about 0 to 1.4 and n ranges from about 8 to 24. In one embodiment, at least one Fe-containing additive is introduced into cement, and at least one anion-containing additive is introduced into mixing water. When the cement and mixing water are combined to create fresh concrete, the additives react to form chloride sequestering compounds. In another embodiment, the additives are introduced or mixed directly into fresh concrete that has already been formed, where they react to create chloride-sequestering compounds. “In situ” formation refers to the creation of a chloride sequestering compound within concrete.
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