Ballast stone is an important raw material for road and railway construction as well as concrete. The rapid development of infrastructure construction in Kenya has driven investors to turn to ballast crushing.

This article will share why crushing ballast stone is profitable and how to choose a suitable ballast stone crushing machine from the aspects of Kenyas infrastructure development, what ballast is, the types of ballast crushers, and tips for choosing a ballast crusher.

Rapidly developed Kenyas infrastructure construction

Rapidly developed Kenyas infrastructure construction

Analysis of infrastructure market in Kenya

Kenyan president launched Kenya Vision 2030 in 2008. This vision aims to transform Kenya into a newly industrializing "middle-income country providing a high-quality life to all its citizens by the year 2030".

The infrastructure sector is one of the foundations of the three pillars namely the economic pillar, social pillar and political pillar which is expected to provide cost-effective world-class infrastructure facilities and services in support of Vision 2030.

Transportation and construction are two key infrastructure sectors, which the Kenyan government is determined to develop and improve.

Railway construction in Kenya has gradually stabilized

Since the launch of Kenya Vision 2030, Kenyas railway sector has accomplished major milestones, including railway connecting Mombasa and Nairobi, railway connecting Nairobi and Naivasha, rehabilitation of the Metre Gauge Railway, construction and operation of the Standard Gauge Railway, etc.

However, the Kenyan government has not stopped here and is still actively promoting a series of railway construction and maintenance.

The government has started to construct a new railway line from Jomo Kenyatta International Airport (JKIA) to Syokimau in March 2021, and a commuter rail system between Kisumu and Mombasa.

Railway construction in Kenya

Road construction in Kenya is growing vigorously

In recent years, the Kenya government has continuously and vigorously invested in the construction and rehabilitation of roads across the country to stimulate economic development.

In the past decade, the Kenyan Government has spent 1 trillion shillings modernizing and building road networks in cities such as Nairobi, Mombasa, Eldoret and Kisumu. This has increased the countrys road network from less than 60,000 kilometers a decade ago to more than 160,000 kilometers nowadays.

In 2019, Kenyan President Uhuru Kenyatta signed the Kenya Road Commission (Amendment) Bill that is committed to fulfilling the governments commitment to build 10,000 kilometers of roads by 2022.

In addition, the government allocated KSH 24.03 billion to tarmac and maintain 18, 406km of roads in 2021 for further connectivity.

Building need in Kenya is high

According to Kenyas 2016 economic report, the Kenyan construction industry is expected to grow at an average annual rate of 7.3% during 2015-2025, which sets a positive tone for Kenyas building materials boom.

Large shopping malls and office buildings in Kenya

The government has invested heavily in residential buildings and commercial buildings to meet the living and production needs of the Kenyan people.

Take residential housing as an example, Kenya has an annual housing demand of 250,000 units with an estimated supply of 50,000 units, culminating in a housing deficit of 2 million units. Whats more, the country needs to build about 200,000 new housing units every year just to keep pace with population growth. It can be seen that Kenya has a huge demand for housing.

In terms of the commercial building, office building, retail building, hospitality, manufacturing plants, power plants, railway stations, airports, ports will all spring up.

The continuous expansion of the middle-income class has increased peoples purchasing power and consumer demand, which has stimulated domestic and foreign investors to establish large shopping malls in Kenya.

A large number of multinational companies including General Electric, Google, IBM and Nestle are attracted to Kenya and set their branches here. Therefore, office building projects have been increasing.

Ballast stone ¡ª an important source of infrastructure construction materials

Ballast is the granular material usually crushed stones, crushed bricks, shingle, kankar, gravel, or sand. It is an important material for the construction of railways, roads, and buildings. Quarries supplying ballast and gravel play a decisive role.

Characteristics of ballast stone

Ballast has the following characteristics:

Characteristics of ballast stone

    Weather resistance and high hardness. For example, basalt, quartz stone, diabase and granite.
  • The particle size meets the standard. For example, basalt super ballast shall be no less than 28mm and no more than 58mm; and the standard for first-grade ballast is 25 - 70mm.
  • A sufficiently dense gradation to provide enough force to hold the sleepers in place.
  • Resistance to temperature changes and water erosion.

Uses of ballast stone

Ballast placed and packed below and around the railway sleepers to transmit the load from sleepers to the formation and to provide drainage facilities to the track is known as track ballast.

There are serval types of railway ballast: broken stone ballast, sand ballast, gravel ballast, Moorun ballast, coal ash or cinder ballast and brick ballast. Choose the suitable type of ballast based on where the railway is built and the supply of raw materials.

Ballast can also be used as the base, subbase, and surface of roads to help distribute the load and drain the water.