laboratory report, water/cement ratio - Essay Example

Only on StudentShare

Extract of sample
laboratory report, water/cement ratio

Given below is the graph which shows the relationship between water/cement ratio and compressive strength of concrete. It can be observed from the image that the relationship is hyperbolic in nature. Figure 1: Relation between strength and water/cement ratio of concrete The compaction of concrete is the process adopted for expelling the entrapped air from the concrete (Shetty 2010). Higher the amount of air entrapped, lower is the workability of the concrete. Even wet cement i.e. concrete with high water/cement ratio is not favourable because it can cause voids when the water dries from the pores. Compaction thus becomes essential in the process of preparation of concrete. 100 percent compaction is necessary to ensure zero percent voids. There are chiefly four methods of compaction and they are as follows: Hand Compaction – Rodding, Tamping, Ramming etc. Compaction by Vibration – Internal, External, Table Vibrator, Platform Vibrator, Surface Vibrator, Vibratory Roller etc. Compaction by Pressure and Jolting Compaction by Spinning In our experiment, we have adopted hand compaction and compaction by vibration using vibration table. We performed hand compaction by tamping it with a tamping rod and packing the constituents tightly in the mould. ...
Download paper

Summary

TABLE OF CONTENTS S.no. Content Page 1 TABLE OF CONTENTS 1 2 OBJECTIVE 2 3 THEORY 2 4 EQUIPMENT 4 5 MATERIALS 4 6 PROCEDURE 5 7 RESULTS 8 8 ANALYSIS/DISCUSSION 14 9 CONCLUSION 15 10 REFERENCES 16 LAB 3: Water/Cement Ratio (W/C) OBJECTIVE The objective of this experiment is to obtain the relationship between the compressive strength of concrete, water/cement ratio and method of compactness…
Author : williamsonalyci

Related Essays

Portland CEM1 Cement/Silica Fume
They are available with different silicon dioxide concentrations depending on the purity of the silicon metal being produced. It would be convenient if silica fumes are integrated to the cement mixtures. Studies have shown that silica fumes strengthen concrete structures. This experiment aimed to determine establish the effect of replacing percentages of cement with silica fume.
...
10 pages (2510 words) Essay
High performance concrete
The concept has gone thru series of evolutions, since the birth of knowledge about mixing water, cement, and aggregate. Advent of high performance concrete is the result of this evolution. This research in brief demonstrates different aspects of this remarkable building material and how it has so far served people being an integral part of complex structures. Table of Contents Index Page Introduction 4 Why high performance concrete? 5 Literature Review 7 Purpose 8 Development history of high performance concrete 8 High performance concrete: Concept and exploration 8 Methodology 12 Research...
10 pages (2510 words) Research Paper
oncrete history
Cement, usually the Portland cement, and Cementitious materials like slag cement and fly ash are used as a binder in the aggregate. Many chemical admixtures may also be included in order to come up with these varied properties. Liquid normally water is added and mixed with this dry composite, this enables the concrete to be poured (shaped) before solidified and hardened to come up with a rock-hard strength through a process known as hydration. The liquid applied reacts with the cement, forming a bond with other components, finally forming a tough stone-like material. It has a comparatively...
23 pages (5773 words) Essay
Impact of a water Jet laboratory
Throughout the world, water turbines have been used in the generation of power. This happens when water that is under pressure strikes the turbine vane thus producing mechanical work. The force that is generated gives out rotational motion when the jet hits the vanes. A clear example of a water turbine is the Pelton wheel. This form of a turbine has more than one water jets which are normally tangentially directed towards vanes which are tightened on the turbine disc rim. The water creates an impact on the vanes producing a torque on the wheel. The torque makes the wheel to rotate thus...
11 pages (2761 words) Lab Report
Laboratory Testing and Evaluation Report
A theoretical study on their mechanical properties is also made. Samples of both finished materials having 1.2 mm thickness are tested against their mechanical properties which include universal testing and hardness testing. Another study of same grade of material which is kept under different process conditions is also made. Samples of 1.2 mm finished skin rolled SPCC steel versus 1.2 mm annealed SPCC steel were also studied in the same manner. As per discussing the chemical composition of the two materials, JISF (2011) had shown the allowable alloying percentage as given in Table 1. Table 1...
6 pages (1506 words) Essay
Electrical and Electronic Engineering laboratory logbook and report
This arrangement determines the direction of conventional current or electron flow and the polarities of any voltages applied. Concerning the direction of conventional current flow, the arrow at the emitter terminal of the transistor representation for both types of transistors points towards the direction of conventional current flow and therefore offers an important reference. The methods of determining the type of transistor and material used to make it are demonstrated in this experiment including how to identify the three terminals of a transistor (Gates 2012).
...
6 pages (1506 words) Essay
Got a tricky question? Receive an answer from students like you! Try us!