Welcome to Proteus Equipment

Asphalt Equipment & manhole lifters

Proteus Equipment has been supplying equipment for the road surfacing industry since 1985, and is now the leading supplier of asphalt Hot Boxes, asphalt duvets, and environmentally-friendly fluids. 

We also sell concrete duvets for various insulation applications, and a wide range of manhole covers lifters designed to lift covers quickly and safely.

We offer the highest QUALITY equipment

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Why Choose Us

Man Hole Cover Lifters

Proteus has been the market leader in providing mechanical and hydraulic manhole cover lifters for the last 20 years, and we can use our experience in the field to provide solutions to all your manhole lifting problems.Lifting manhole covers isn’t as easy as you’d expect, due in part to the vast array of different keyholes available on different types of cover, and differing sizes of covers coupled with awkward locations.

Correct Ratios for Concrete Mixes

You might add FA to your concrete if the concrete was going to be placed in an “aggressive” environment. The materials you will use are cement, sand and crushed stone (available sizes 9.5 mm, 13,2 mm, 19,5 mm or 26,5 mm). I do have tables for trial concrete mixes but they only go up to 40 MPa.

Concrete Mix Ratio and How to Mix Concrete Including a Handy DIY Concrete

Mixing Concrete - Let DIY Doctor show you how to mix concrete with this Project and Video Tutorial. Explains what sand to cement ratio you need for your Concrete Project. Find out how much cement and aggregate you need to buy using our concrete calculator. A

Concrete mix ratio for various grades of concrete

Dec 08, 2017 · You can also watch our video here: Video on concrete mix ratio of various grades of concrete. Concrete mix ratio table. Here is the standard chart table showing various grades of concrete mix design along with their respective ratios of cement, sand and aggregates required.


M45 CONCRETE MIX DESIGN BY IS METHOD A-1) Design stipulations Characteristics compressive strength 28 days : 45N/mm 2 Target mean strength :f ’ ck = f ck +1.65 s ( s= 5; from is 10262 table 1) ...

What is the ratio for cement, sand and stone for a flat roof

This composition as we all know is called mixed design and varies quarry to quarry ie material properties,climatic condition of that area etc hence cant say this proportion is best for this grade while thumb rules are their in existence hence foll...

How to Make Lightweight Concrete

May 09, 2018 · Lightweight concrete may not be as structurally sound as traditional concrete, but it can be useful in some projects where weight is more important than strength. To make this concrete, combine 8 parts cement, sand and lightweight aggregate with 5 parts water.

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Concrete Pavement Mixture Design and Analysis (MDA): An

The aim of this report is to describe an innovative approach to proportioning concrete mixtures that can provide guidance for concrete producers, specifiers, contractors, and engineers. Although the provided guidance in this report is primarily for concrete pavements, a similar approach can be applied to other concrete applications.

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Concrete Mix Design: Illustrative Example M30 Grade (M20, M25

Concrete mix design is a procedure of selecting the suitable ingredients of concrete and their relative proportions with an objective to prepare concrete of certain minimum strength, desired workability and durability as economically (value engineered) as possible.

An Experimental Study on Pervious Concrete (Mix-Ratio

An Experimental Study on Pervious Concrete (Mix-Ratio, Strength and Porous Properties) - written by Dev Pratap Mani Tripathi , S. M. Ashraf Husain , Praneet Madhav published on 2017/12/11 download full article with reference data and citations

Optimum Design of Reactive Powder Concrete Mixture Proportion

An optimum mixture proportion design method of reactive powder concrete (RPC) based on an artificial neural network (ANN) and harmony search (HS) algorithm was

Roller Compacted Concrete | Materials & Mix proportion

Mar 21, 2018 · The development of Roller Compacted Concrete (RCC) was a major change in the construction practices of dams and other structures. Roller Compacted Concrete is defined as the concrete which is compacted by roller compaction technique. The concrete mixture used for construction should keep in an unhardened state to support the roller compaction.

Concrete Mix Ratio and Their Tpyes

So, What is 20 MPa here ?? 20 MPa is expression or Unit to show Compressive Strength of CMR (Concrete Mix Ratio). Different types of Concrete Grade Ratio Concrete mix design is process of preparation of concrete with suitable proportion of ingredients to meet the required strength and durability of concrete structure. ...

How to mix concrete – InvestConsult

Concrete Proportion and Mixture Ratio. Concrete is one of the most simple and best known building materials and probably the most vital for the strength of the constructions of your building, parking lot, patio, garden wall, paths etc. That is why it is important to know how to properly mix and pour concrete.

Concrete: The Basic Mix

The Basic Mix: A general teacher's guide for concrete preparation. The physical properties of density and strength of concrete are determined, in part, by the proportions of the three key ingredients, water, cement, and aggregate.

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how we calculate of Sand, cement and aggregate of M20 ratio

M20 (1 cement :1.5 sand :3 stone/brick aggregate). To determine the proportions you have to perform mix design, for this you have to find out the of cement, CA, FA, and water cement ratio ...

Concrete Countertop Mix

Many concrete countertop pros have experimented with their mixes over the years, fine-tuning them to perfection so they can achieve consistent, reproducible results time and again. Some of them have even patented their field-proven mixes and sell them in packaged form to fellow concrete countertop makers.

Concrete Proportion and Concrete Mixture Ratio | Concrete

Concrete Proportion and Concrete Mixture Ratio The two different ways in Concrete Proportioning Mixture: 1. Volume Method 2. by Using Mixturing Box. Volume Method is the most common and convenient method in Mixing Concrete to attained the desired strength ...

types of concrete: Types of concrete: Which type of concrete

Jun 24, 2019 · Vacuum concrete – This concrete mix contains a higher proportion of water. Their preparation process involves suction of excess water using a vacuum pump without waiting for the concrete mixture to set. This process hastens the strengthening period of the structure from 28 days to around ten days.

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Mix designs for concrete block

for Load-Bearing Concrete Masonry Units. Additionally, the right mix proportions can improve CMU durability and appearance. This article gives general guide-lines for designing a concrete mix with locally available aggregates, and focuses on determining aggre-gate fineness modulus, proportion-ing aggregates, and choosing a ce-ment-aggregate ratio.


Dec 10, 2016 · Concrete Mix Design. Introduction. The process of selecting suitable ingredients of concrete and determining their relative amounts with the objective of producing a concrete of the required, strength, durability, and workability as economically as possible, is termed the concrete mix design.

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Concrete mix ratio - Various grades of concrete

Dec 07, 2017 · Here is the table showing concrete mix ratio of various grades of concrete such as M5, M7.5, M10, M15, M20, M25, M30, M35, M40. These concrete mix design should be consistence throughout the ...


ACI METHOD OF PROPORTIONING CONCRETE MIXES The ACI Standard 211.1 is a “Recommended Practice for Selecting Proportions for Concrete”. The procedure is as follows: Step 1. Choice of slump Step 2. Choice of maximum size of aggregate Step 3. Estimation of mixing water and air content Step 4. Selection of water/cement ratio Step 5.

Mixing Concrete for the Beginning DIYer

If you should find that your project requires more concrete than the ratios outlined in this article, simply increase the number of buckets of material you mix in proportion to the mixing ratio. For example: if you use two buckets of Portland cement, you would need to use six buckets of sand, six buckets of aggregate, and two buckets of water.

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