Water reducers

Industry

CPC
C04B2103/302

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

CCHEMISTRY METALLURGY C04Concrete, cement, ceramics C04BLIME, MAGNESIA SLAG CEMENTS COMPOSITIONS THEREOF C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone

Current Industry

C04B2103/302Water reducers

Industries

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Fly ash-based foam geopolymer, preparation method therefor, and use...
- Patent number 12,151,973
- Issue date Nov 26, 2024
- Shenzhen University
- Hongzhi Cui
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Alkali-activated geopolymer coating, and preparation method and use...
- Patent number 12,116,317
- Issue date Oct 15, 2024
- Shenzhen University
- Yingwu Zhou
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Polycarboxylic acid water-reducing agent with high adaptability to...
- Patent number 12,098,099
- Issue date Sep 24, 2024
- SOBUTE NEW MATERIALS CO., LTD.
- Jiaping Liu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Three-dimensional printing of cementitious compositions
- Patent number 12,091,857
- Issue date Sep 17, 2024
- The Penn State Research Foundation
- Ali M. Memari
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Building product
- Patent number 12,037,289
- Issue date Jul 16, 2024
- ADAPTAVATE LIMITED
- Thomas James Christopher Robinson
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
High-adaptability viscosity-reducing polycarboxylic acid water redu...
- Patent number 12,037,287
- Issue date Jul 16, 2024
- SOBUTE NEW MATERIALS CO., LTD.
- Jiaping Liu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Online control of rheology of building material for 3D printing
- Patent number 12,030,813
- Issue date Jul 9, 2024
- HOLCIM TECHNOLOGY LTD
- Vivien Esnault
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Interface joint material based on industrial solid waste and its pr...
- Patent number 11,999,661
- Issue date Jun 4, 2024
- NingboTech University
- Chonggen Pan
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Multitype-adsorptive-group polycarboxylic acid water-reducing agent...
- Patent number 11,993,541
- Issue date May 28, 2024
- SOBUTE NEW MATERIALS CO., LTD.
- Jiaping Liu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Concrete crack repair material based on nano materials and its prep...
- Patent number 11,981,604
- Issue date May 14, 2024
- NingboTech University
- Chonggen Pan
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Self-reinforced cementitious composite compositions for building-sc...
- Patent number 11,981,603
- Issue date May 14, 2024
- The Regents of the University of Michigan
- Daniel G. Soltan
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method of preparing alkali activation material by using red mud-bas...
- Patent number 11,958,788
- Issue date Apr 16, 2024
- Hubei University Of Technology
- Xingyang He
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Fluidized solidified soil based on gold tailings, and preparation m...
- Patent number 11,912,623
- Issue date Feb 27, 2024
- WUHAN INSTITUTE OF TECHNOLOGY
- Zunqun Xiao
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Dispersant for premixed fluidized solidified soil, preparation meth...
- Patent number 11,905,221
- Issue date Feb 20, 2024
- WUHAN INSTITUTE OF TECHNOLOGY
- Zunqun Xiao
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Ultra-high performance concrete with waste brick powder and prepara...
- Patent number 11,905,213
- Issue date Feb 20, 2024
- Zhengzhou University
- Chengfang Yuan
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Hyaloclastite pozzolan, hyaloclastite based cement, hyaloclastite b...
- Patent number 11,858,847
- Issue date Jan 2, 2024
- Romeo Ilarian Ciuperca
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Concrete vacuum tube segment for hyper-speed transportation system...
- Patent number 11,773,021
- Issue date Oct 3, 2023
- KOREA INSTITUTE OF CIVIL ENGINEERING AND BUILDING TECHNOLOGY
- Gum Sung Ryu
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Concrete structure strengthened using grid reinforcement material a...
- Patent number 11,773,610
- Issue date Oct 3, 2023
- KOREA INSTITUTE OF CIVIL ENGINEERING AND BUILDING TECHNOLOGY
- Hyeong Yeol Kim
- E04 - BUILDING
Information Patent Grant
Dental gypsum powder
- Patent number 11,752,073
- Issue date Sep 12, 2023
- GC Corporation
- Daizaburo Mori
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method for the construction of a data center
- Patent number 11,753,346
- Issue date Sep 12, 2023
- HOLCIM TECHNOLOGY LTD
- Qing Zhang
- E04 - BUILDING
Information Patent Grant
Sulfate corrosion-resistant concrete and method thereof for optimiz...
- Patent number 11,746,063
- Issue date Sep 5, 2023
- Research Institute of Highway Ministry of Transport
- Chongbang Xu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Methods of forming cured composite materials with optimized pH and...
- Patent number 11,618,714
- Issue date Apr 4, 2023
- SOLIDIA TECHNOLOGIES, INC.
- Anuj Seth
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Concrete repair coating
- Patent number 11,560,334
- Issue date Jan 24, 2023
- University of Kentucky Research Foundation
- Thomas Robl
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Preparation method for polycarboxylate water reducer having regular...
- Patent number 11,548,967
- Issue date Jan 10, 2023
- SOBUTE NEW MATERIALS CO., LTD.
- Shuying Zhai
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Multi-arm polycarboxylate water reducer and preparation method thereof
- Patent number 11,518,837
- Issue date Dec 6, 2022
- JIANGSU ARIT NEW MATERIALS CO., LTD.
- Shanshan Qian
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Water cured concrete mix composition
- Patent number 11,485,684
- Issue date Nov 1, 2022
- King Fahd University of Petroleum & Minerals
- Mohammed Ibrahim
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Inorganic fiber toughened inorganic composite artificial stone pane...
- Patent number 11,485,685
- Issue date Nov 1, 2022
- GUANGDONG TOPNICE NEW MATERIALS TECHNOLOGY CO., LTD.
- Fucai Liu
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for preparing dispersant using lignin degradation products
- Patent number 11,479,722
- Issue date Oct 25, 2022
- Fu Zhou University
- Minghua Liu
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Concrete mix composition
- Patent number 11,479,507
- Issue date Oct 25, 2022
- King Fahd University of Petroleum & Minerals
- Mohammed Ibrahim
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Admixture composition to improve strength of cement cured products
- Patent number 11,472,739
- Issue date Oct 18, 2022
- Huntsman Petrochemical LLC
- Antonius Wibowo
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
Hydraulic Composition, Powdery Additive, Powdery Thickener, and Pre...
- Publication number 20240409462
- Publication date Dec 12, 2024
- Shin-Etsu Chemical Co., Ltd.
- Hironao SAITO
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
HYDRAULIC COMPOSITION, THICKENER AND ADDITIVE THEREFOR
- Publication number 20240409463
- Publication date Dec 12, 2024
- Shin-Etsu Chemical Co., Ltd.
- Hironao SAITO
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
DESERT-SAND ENGINEERED CEMENTITIOUS COMPOSITE PIPES
- Publication number 20240392897
- Publication date Nov 28, 2024
- Saudi Arabian Oil Company
- Georgios Zapsas
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
SILICON COMPOSITION AND ITS APPLICATION AS AN ADDITIVE FOR REDUCING...
- Publication number 20240383810
- Publication date Nov 21, 2024
- Wacker Metroark Chemicals Pvt. Ltd.
- Amit Kumar PAUL
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Gypsum Panel Having Enhanced Sustainability
- Publication number 20240368037
- Publication date Nov 7, 2024
- Gold Bond Building Products, LLC
- Ratnasabapathy Gurunathan Iyer
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
BUILDING PRODUCT
- Publication number 20240336529
- Publication date Oct 10, 2024
- ADAPTAVATE LIMITED
- Thomas James Christopher ROBINSON
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
COMPOSITIONS AND METHODS RELATING TO INCREASED CARBON DIOXIDE UPTAK...
- Publication number 20240308904
- Publication date Sep 19, 2024
- Saudi Arabian Oil Company
- Mohammed AL MEHTHEL
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
ENERGY-SAVING AND ENVIRONMENT-FRIENDLY NON-AUTOCLAVED PIPE PILE CON...
- Publication number 20240279121
- Publication date Aug 22, 2024
- Guangdong University of Technology
- ZHE XIONG
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
FLY ASH-BASED FOAM GEOPOLYMER, PREPARATION METHOD THEREFOR, AND USE...
- Publication number 20240270649
- Publication date Aug 15, 2024
- Shenzhen University
- Hongzhi CUI
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
OIL-GAS WELL, WELL CEMENTATION METHOD, AND CEMENT COMPOSITION
- Publication number 20240271504
- Publication date Aug 15, 2024
- China Petroleum and Chemical Corporation
- Shiming ZHOU
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
MARINE CONCRETE COMPOSITION USING DECHLORINATION MICROORGANISM, AND...
- Publication number 20240270646
- Publication date Aug 15, 2024
- KOREA INSTITUTE OF CIVIL ENGINEERING AND BUILDING TECHNOLOGY
- Kyong-Chul Kim
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
ALKALI-ACTIVATED GEOPOLYMER COATING, AND PREPARATION METHOD AND USE...
- Publication number 20240262747
- Publication date Aug 8, 2024
- Shenzhen University
- Yingwu ZHOU
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Compositions and Processes for Ultra-High Performance Microfiber Co...
- Publication number 20240254058
- Publication date Aug 1, 2024
- INTEGRATED COMPOSITE CONSTRUCTION SYSTEMS, LLC
- RICHARD A. BURGESS
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Three-Dimensional (3D) Printed Mortar and Preparation Method Theref...
- Publication number 20240190039
- Publication date Jun 13, 2024
- Hebei Quantum Intelligent Technology Co., Ltd.
- Chao ZHANG
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
BINDER COMPOSITION COMPRISING POZZOLANIC MATERIAL AND FINE FILLER
- Publication number 20240190771
- Publication date Jun 13, 2024
- ECOCEM MATERIALS LIMITED
- Laurent FROUIN
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
METHOD AND MANUFACTURING SYSTEM FOR PREPARING ADAPTIVE STEEL-FIBER-...
- Publication number 20240123652
- Publication date Apr 18, 2024
- Hebei University of Technology
- Longbang QING
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
LOW CARBON CONCRETE COMPOSITION AND A METHOD TO PRODUCE A LOW CARBO...
- Publication number 20240116815
- Publication date Apr 11, 2024
- HOLCIM TECHNOLOGY LTD
- Kevin CARNEVALE
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Compositions of Steel-microfiber Reinforced Ultra High Performance...
- Publication number 20240043327
- Publication date Feb 8, 2024
- INTEGRATED COMPOSITE CONSTRUCTION SYSTEMS
- DJ BURGESS
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
DISPERSANT FOR PREMIXED FLUIDIZED SOLIDIFIED SOIL, PREPARATION METH...
- Publication number 20240018058
- Publication date Jan 18, 2024
- Wuhan Institute of Technology
- Zunqun XIAO
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
ULTRA-HIGH PERFORMANCE CONCRETE WITH WASTE BRICK POWDER AND PREPARA...
- Publication number 20230416147
- Publication date Dec 28, 2023
- Zhengzhou University
- Chengfang YUAN
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
FLUIDIZED SOLIDIFIED SOIL BASED ON GOLD TAILINGS, AND PREPARATION M...
- Publication number 20230382795
- Publication date Nov 30, 2023
- Wuhan Institute of Technology
- Zunqun XIAO
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
METHOD OF PREPARING ALKALI ACTIVATION MATERIAL BY USING RED MUD-BAS...
- Publication number 20230382791
- Publication date Nov 30, 2023
- Hubei university of technology
- Xingyang HE
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
INTERFACE JOINT MATERIAL BASED ON INDUSTRIAL SOLID WASTE AND ITS PR...
- Publication number 20230382789
- Publication date Nov 30, 2023
- NingboTech University
- Chonggen Pan
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
CEMENTITIOUS COMPOSITIONS COMPRISING OXIDATIVELY DEGRADED POLYSACCH...
- Publication number 20230322620
- Publication date Oct 12, 2023
- Sika Technology AG
- Ottavio ROMBOLA
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
DOUBLE-LIQUID GROUTING SLURRY, ITS TECHNOLOGY AND APPLICATION FOR S...
- Publication number 20230212076
- Publication date Jul 6, 2023
- Ocean University of China
- Fei Sha
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD FOR ACCELERATING AND FLUIDIFYING WET CONCRETES OR MORTARS CO...
- Publication number 20230192552
- Publication date Jun 22, 2023
- ECOCEM MATERIALS LIMITED
- Mohend CHAOUCHE
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
POLYHYDROXY AROMATIC INTERMEDIATE, PREPARATION THEREOF AND USE THER...
- Publication number 20230151140
- Publication date May 18, 2023
- SOBUTE NEW MATERIALS CO., LTD.
- Qianping Ran
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Modified naphthalene series water reducing agent for concrete with...
- Publication number 20230136970
- Publication date May 4, 2023
- Beijing College of Finance and Commerce
- Qiusheng Guo
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
COMPOSITIONS FOR CONTROLLING MICROBIALLY INDUCED CONCRETE CORROSION
- Publication number 20230072595
- Publication date Mar 9, 2023
- The Regents of the University of Colorado, a Body Corporate
- Mark T. Hernandez
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
USE OF AMORPHOUS SILICA REAGENT PRODUCED FROM SERPENTINE IN CONCRET...
- Publication number 20230060611
- Publication date Mar 2, 2023
- ALLIANCE MAGNÉSIUM
- Joel FOURNIER
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Water reducers

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Fly ash-based foam geopolymer, preparation method therefor, and use...

Alkali-activated geopolymer coating, and preparation method and use...

Polycarboxylic acid water-reducing agent with high adaptability to...

Three-dimensional printing of cementitious compositions

Building product

High-adaptability viscosity-reducing polycarboxylic acid water redu...

Online control of rheology of building material for 3D printing

Interface joint material based on industrial solid waste and its pr...

Multitype-adsorptive-group polycarboxylic acid water-reducing agent...

Concrete crack repair material based on nano materials and its prep...

Self-reinforced cementitious composite compositions for building-sc...

Method of preparing alkali activation material by using red mud-bas...

Fluidized solidified soil based on gold tailings, and preparation m...

Dispersant for premixed fluidized solidified soil, preparation meth...

Ultra-high performance concrete with waste brick powder and prepara...

Hyaloclastite pozzolan, hyaloclastite based cement, hyaloclastite b...

Concrete vacuum tube segment for hyper-speed transportation system...

Concrete structure strengthened using grid reinforcement material a...

Dental gypsum powder

Method for the construction of a data center

Sulfate corrosion-resistant concrete and method thereof for optimiz...

Methods of forming cured composite materials with optimized pH and...

Concrete repair coating

Preparation method for polycarboxylate water reducer having regular...

Multi-arm polycarboxylate water reducer and preparation method thereof

Water cured concrete mix composition

Inorganic fiber toughened inorganic composite artificial stone pane...

Method for preparing dispersant using lignin degradation products

Concrete mix composition

Admixture composition to improve strength of cement cured products

Patents Applicationslast 30 patents

Hydraulic Composition, Powdery Additive, Powdery Thickener, and Pre...

HYDRAULIC COMPOSITION, THICKENER AND ADDITIVE THEREFOR

DESERT-SAND ENGINEERED CEMENTITIOUS COMPOSITE PIPES

SILICON COMPOSITION AND ITS APPLICATION AS AN ADDITIVE FOR REDUCING...

Gypsum Panel Having Enhanced Sustainability

BUILDING PRODUCT

COMPOSITIONS AND METHODS RELATING TO INCREASED CARBON DIOXIDE UPTAK...

ENERGY-SAVING AND ENVIRONMENT-FRIENDLY NON-AUTOCLAVED PIPE PILE CON...

FLY ASH-BASED FOAM GEOPOLYMER, PREPARATION METHOD THEREFOR, AND USE...

OIL-GAS WELL, WELL CEMENTATION METHOD, AND CEMENT COMPOSITION

MARINE CONCRETE COMPOSITION USING DECHLORINATION MICROORGANISM, AND...

ALKALI-ACTIVATED GEOPOLYMER COATING, AND PREPARATION METHOD AND USE...

Compositions and Processes for Ultra-High Performance Microfiber Co...

Three-Dimensional (3D) Printed Mortar and Preparation Method Theref...

BINDER COMPOSITION COMPRISING POZZOLANIC MATERIAL AND FINE FILLER

METHOD AND MANUFACTURING SYSTEM FOR PREPARING ADAPTIVE STEEL-FIBER-...

LOW CARBON CONCRETE COMPOSITION AND A METHOD TO PRODUCE A LOW CARBO...

Compositions of Steel-microfiber Reinforced Ultra High Performance...

DISPERSANT FOR PREMIXED FLUIDIZED SOLIDIFIED SOIL, PREPARATION METH...

ULTRA-HIGH PERFORMANCE CONCRETE WITH WASTE BRICK POWDER AND PREPARA...

FLUIDIZED SOLIDIFIED SOIL BASED ON GOLD TAILINGS, AND PREPARATION M...

METHOD OF PREPARING ALKALI ACTIVATION MATERIAL BY USING RED MUD-BAS...

INTERFACE JOINT MATERIAL BASED ON INDUSTRIAL SOLID WASTE AND ITS PR...

CEMENTITIOUS COMPOSITIONS COMPRISING OXIDATIVELY DEGRADED POLYSACCH...

DOUBLE-LIQUID GROUTING SLURRY, ITS TECHNOLOGY AND APPLICATION FOR S...

METHOD FOR ACCELERATING AND FLUIDIFYING WET CONCRETES OR MORTARS CO...

POLYHYDROXY AROMATIC INTERMEDIATE, PREPARATION THEREOF AND USE THER...

Modified naphthalene series water reducing agent for concrete with...

COMPOSITIONS FOR CONTROLLING MICROBIALLY INDUCED CONCRETE CORROSION

USE OF AMORPHOUS SILICA REAGENT PRODUCED FROM SERPENTINE IN CONCRET...