B) The preparation of mortar mixtures Three series of synthesis were prepared: A: with binder/aggregate 1:2 binding agents: lime-pozzolana 1:1 (A1), lime-pozzolana-white.

Slides:

Advertisements

Similar presentations

CONCRETE MATERIALS Technology of Material II TKS 4012 Prepared by

Advertisements

Civil Engineering Materials

SHOTCRETING K.V.SUBBA RAO.

Hardened Concrete Properties u Strength u compressive strength psi u tensile strength psi u flexural strength u compression >> tension.

Reinforced Concrete Design

SHRINKAGE AND CRACKING BEHAVIOR OF HPC USED FOR BRIDGE DECK OVERLAYS By Hasitha Seneviratne Iowa State University, 2013.

CE 244 MATERIALS OF CONSTRUCTION

PC Cement Hydration PCC consists of binder and aggregates. Aggregates are typically used in two factions: fines and coarse. The binder phase normally.

Properties of Fresh Concrete

Lecture No. 8 Tests on Aggregates (cont.) Prepared by: Dr. Salah Al-Dulaijan.

Masonry Masonry refers to construction by stone or brick “masonry units” with mortar, and is divided into two types: Exterior and Interior.

Masonry Cement and Mortar

Break Down of Concrete Components. Mineral Admixtures: Pozzolans & Cementitious Fly Ash Slag Cement Silica Fume – Benefits Higher strengths at later age.

CATeCA Lightweight Concrete (CATe-con) Floatable concrete (SG 0.9) in the water CATeCA Pontoon which continue to float for over 10 years.

Use of Molten Plastics in developing alternative building materials

Mechanical Properties of HPC with Expansive Additive and Shrinkage Reducing Admixture under Simulated Completely- Restrained Condition at Early Age Takafumi.

Learning Objectives Relevance of fresh concrete properties

Volumetric Change of Repair Materials Low Shrinkage Materials.

Slag valorisation in construction materials: mechanical properties and rheology of alkali activated concrete containing ggbs Dr. Raffaele VINAI Mr. Ali.

Proportioning of Concrete Mixtures

Strength of Concrete.

Proportioning of Concrete Mixtures

CONCRETE PROTECTION MATERIALS & TECHNIQUES CE 402 DONE BY AHMED AL-HAWAS FAYEZ AL-SAIKHAN.

Faculty of Engineering Division of Built Environment Laboratory of Engineering for Maintenance System Hokkaido University Clarification of Frost Damage.

“Properties of Concrete” Introduction

4.7.2 High-strength Concrete (HSC) Introduction –Definition –Classifications Choice of HSC raw material –Binding material –Excellent aggregate –Superplasticizer.

4.7.5 Non-dispersion Concrete in Water (NDC) Introduction Composites of NDC Properties of NDC.

PROPERTIES OF CONCRETE PROPERTIES OF CONCRETE ARTICLE Effects of aggregates on properties of concrete.

Technical requirementsTechnical requirements –Resistance to corrosion –Frost-resistance –Thickness protective layer of marine reinforced concrete –The.

Capitalizing on Self-Desiccation for Autogenous Distribution of Chemical Admixtures Dale P. Bentz 4 th International Seminar on Self- Desiccation in Concrete.

Design of Concrete Structure I Dr. Ali Tayeh First Semester 2009 Dr. Ali Tayeh First Semester 2009.

Concrete Technology Ch8: Proportioning Concrete Mixes Lecture 14 Eng: Eyad Haddad.

Mix design of self consolidating concretes Exercise 8.

Eng. Malek Abuwarda Lecture 12 P1P1 Construction Methods Lecture 12 Production of Aggregate and Concrete.

Waterproofing by fine crystalline fibers inside the capillary pores By Naeem Sohail Saleem

Chapter 4 Ordinary Concrete. §4.2 Ingredient of Ordinary Concrete Cement4.2.1 Cement Aggregate Water Concrete Admixture.

1/33.  Performance based approach  Definitions and responsibilities  Standard requirements  Exposure classes  Fresh concrete requirements  Hardened.

Estimation of service life-span of concrete structures

Composition of cement paste, concrete admixtures and mix design of superplasticized concrete Exercise 4.

UNIT II CONCRETE.

Control Tests for Concrete Ch. 16. Project Specifications Characteristics of the mixture Maximum size aggregate Minimum cement content Characteristics.

Design and Control of Concrete Mixtures – Chapter 18

1.Initial setting time of cement:  40 to 60min  30 to 60min  15 to 60min  35 to 60min.

Drying Shrinkage Presentation By Savita Goel May 17, 2002.

Москва, 2013 в Calcium nitrate as Antifreeze Admixture in Concrete.

Tensile strength of concrete

Warsaw University of Technology Faculty of Civil Engineering, Mechanics and Petrochemistry High performance concrete with SCM and recycled.

3. LIGHTWEIGHT AGGREGATES (L.W.A.)

High Performance Concrete. Content Introduction What is High Performance Concrete? Application Objectives General Characteristics Advantages Limitations.

5. FERROCEMENT.

CVL 2407 Faculty of Applied Engineering and Urban Planning Civil Engineering Department 2 nd Semester 2013/2014 Dr. Eng. Mustafa Maher Al-tayeb.

 Experimental Part.  Data Collection and Analysis.  Conclusions and Recommendations.

Frost resistance of recycled concrete

Dr. Younis M. ALSHKANE and Dr. Serwan Kh. RAFIQ

Hardened Concrete Properties

CE 244 MATERIALS OF CONSTRUCTION

Frost resistance of recycled concrete

Silica fume The transition zone is a thin layer between the bulk hydrated cement paste and the aggregate particles in concrete. This zone is the weakest.

CE 6002 – CONCRETE TECHNOLOGY

IEEES7 - Control of cement slurry formulation for oil well in critical geological layer 1* S. Bechar,

Table (1) 6066,6063 ,1050 component elements

A STUDY ON HIGH PERFORMANCE CONCRETE WITH FLY ASH AND SILICA POWDER

Figure 3. SEM observation of limestone filler.

Hardened Concrete Properties

Contemporary Engineering Sciences, Vol. 8, 2015, no

Department of Civil Engineering

Department of Civil Engineering

CE 1001 Introduction to Civil Engineering

Subject: Civil Engineering Material Program : Civil Engineering Year/Part : II/I Class Load : 2 period/week By: Assistant Professor, Er. R.P. Neupane.

Presentation transcript:

B) The preparation of mortar mixtures Three series of synthesis were prepared: A: with binder/aggregate 1:2 binding agents: lime-pozzolana 1:1 (A1), lime-pozzolana-white cement 1:0.8:0.2 (A2) lime-pozzolana-white cement 1:0.6:0.4 (A3) B. with binder/ aggregates 1:3 binding agents: lime-pozzolana 1:1 (B4), lime-pozzolana-white cement 1:0.8:0.2 (B5) lime-pozzolana-white cement 1:0.6:0.4 (B6) C. with binder/aggregates 1:3 binding agents: lime – pozzolana –clay 1:0.6:0.4 (C7) lime-pozzolana-white cement-clay 1:0.4:0.2:0.4 (C8) lime-pozzolana-white cement-clay 1:0.2:0.4:0.4 (C9)

These three main series were repeated by using superplastisizer and air-entraining agents. Therefore, the synthesis  AS10, AS11, AS12 / BS13, BS14, BS15 / CS16, CS17, CS18, as well as the  AE19, AE20, AE21 / BE22, BE22, BE23 / CE24, CE25, CE26, were also produced to check the effectiveness of admixtures.

The proportion of the mixtures, are shown in the diagrams, while in the tables, some additional parameters are given (see APPENDIX). A total number of 243 specimens (4x4x16 cm), was cast for the needs of different tests, which have to be applied. Plasticity was also measured by using flow table, according to DIN 81555

Graphics 1-9: Proportions of weight

TESTS The specimens of all mixtures were subjected to the measurement of::  Flectural – Compressive strength, at 14-d 28-d age, according to ASTM C  Modulus of Elasticity, at 14-d 28-d age, by using ultrasonic pulse velocity, ASTM C  Porosity at 28-d age, according to RILEM CPC 11.3  Capillary Suction (at the age of 28 days), NORMAL 11/85  Shrinkage deformation at 14-day age, according to ASTM C

CORROSION TESTS (according to RILEM recommendations) 28 days after the manufacture of the repair mortars, some corrosion tests took place.  Influence of humidity Covering with tube water and weighting after days  Influence of salts (Na 2 SO 4 10% w.w.) Covering with a dilution of Na 2 SO 4 (10%w.w.) for two hours each day and desiccation in the oven for 24 hours. Weighting of the samples every two days. Each cycle consists of two days.  Influence of frost Frost resistance is to be checked in relation with the addition of air-entrancing admixtures

RESULTS The results of all these tests are given below, in the form of tables and graphics. Analytically, the measurements are included in the appendix. Note: There are results based on the first measurements, since most of the tests are still running.