How to Make on site concrete mixing: Price, and Benefits On-site concrete mixing involves the meticulous production of concrete right at the construction site. As construction projects grow in scale and intricacy, the importance of it takes on a new dimension. Moreover, it offers a flexible amalgamation of convenience and uncompromising quality. Beyond just practicality, this procedure encapsulates a philosophy of: ● Adaptability ● Sustainability ● Inventive thinking How to Mix Concrete at the Site? Estimate the Volume Let's start by estimating the necessary amount of concrete for the structure. This involves calculating the required concrete volume and factoring in a 5% allowance for spillage and potential losses. Subsequently, we can determine the number of cubic meters of each unprocessed material based on our chosen mix proportions. Notably, the preference is to employ volumetric mix quantities as opposed to weight-based ones. Why? Because they are convenient to measure onsite. Furthermore, this approach streamlines the process of obtaining accurate readings. Store Raw Material Moreover, design appropriate site locations for storing raw materials, taking into consideration the unique demands for each material. However, ensure that aggregates are sheltered under sheds to safeguard against: ● Rain ● Excessive sunlight exposure Certainly, water absorption can lead to inconsistent properties and reduced strength in the substances. ● For cement storage, opt for a facility with controlled humidity levels. ● Refrain from stacking more than 10 bags in a single column. ● They must maintain a minimum distance of 2 feet between the bags and the walls or roof. Similarly, proper preserving conditions will allow you to have cement at one location for up to 6 months. Remember, cement bags are not waterproof, so prioritize keeping them dry. Arrangement: Efficiently organize the machinery setup, with a focus on incorporating a batch mixer for on-site concrete preparation. Various concrete mixing machines are available with different capacities to serve your needs. While manual mixing is feasible for smaller projects, it is important to note that the quality of samples can vary.
For a durable and cost-effective solution, go for investing in a wheelbarrow mixer with a capacity of 2 cubic feet. Moreover, these mixers cost slightly over $300. Also, they can be resold after use to recover some of the initial expenses. Mixing Procedure ● To commence the merging process, it is imperative to assemble an appropriate container. ● Carefully gauge the quantities of the constituents based on the volumetric ratios specified for the blend. ● Subsequently, introduce them into the amalgamation. ● Optimal dimensions for the internal space of the measuring receptacle are advised to be 400 mm in length, 350 mm in width, and 250 mm in height. ● The cumulative internal capacity totals 0.035 m³, equivalent to the volume occupied by the cement housed within a standard 50 kg bag. Basic Mix Proportion Used Mix Ratio Strength (MPa) Cement (50 kg bags) Sand Coarse Aggregate Water (Liters) Water/Ceme nt Ratio (W/C) 1 : 1 : 2 30 1 0.035 m³ (1 box) 0.07 m³ (2 boxes) 20 0.4 1 : 2 : 4 20 1 0.07 m³ (2 boxes) 0.14 m³ (4 boxes) 25 0.5 1 : 1½ : 3 25 1 0.053 m³ (1½ boxes) 0.105 m³ (3 boxes) 22.5 0.45
1 : 3 : 6 10 1 0.105 m³ (3 boxes) 0.21 m³ (6 boxes) 35 0.7 Incorporate the dry components initially and blend them for approximately 15 to 20 seconds for a uniform fusion. Now, introduce the water into the mixture before a quarter of the total mixing duration has transpired. Continue the mixing process for a minimum span of 2 minutes. Is Manual Mixing a Good Option or Machine Mixing? The workforce asked for this task usually ranges from 5 to 6 individuals. This number can vary depending on the project's scale and the distances involved in transporting materials. Alternatively, on-site mixing trucks offer a mechanized solution, eliminating the desire for manual labor. Besides, these automobiles are equipped with mixing machines and hoppers for raw materials. Moreover, opting for on-site mixing using vehicles allows creation of concrete in smaller batches, effectively reducing waste. In contrast to the 7 to 10-meter concrete cubes produced by ready-mix plants, on-site mixing results in smaller batch sizes. Therefore, contemplate the batching rate and select a concrete pump to facilitate the work. One practical approach is using chutes to convey concrete to the foundation construction phase. Certainly, this is especially economical and can be applied multiple times during foundational work. As the work progresses, transitioning to ready-mix concrete becomes advantageous, particularly for beams, columns, and slabs. Price of Mix on Site Additionally, the pricing dynamics of on-site concrete mixing are influenced by several key elements. It primarily encompasses: ● Material costs ● Machinery expenses or rentals ● Labor remuneration Given the adherence to volumetric mix proportions, there is a notable elevation in raw material consumption. Additionally, a surplus of 10% cement is imperative compared to ready-mix concrete alternatives. Why? To achieve an equivalent strength grade! Moreover, regarding equipment, the outlay escalates with capacity. As a result, the pricing calculus must enclose the: ● Deployment expenses for tools ● Conveyance of raw materials On-site mixing results in lower shipping costs than the ready-mix concrete option. This difference arises because concrete agitator trucks can carry less concrete than dump trucks. This means that
when using ready-mix, the trucks will travel almost three times more to transfer the same amount of concrete. Advantages of Mix on Site Concrete ● Mix on-site concrete ensures the highest strength due to its immediate use, preserving its freshness and quality. ● The ability to customize mix percentages, additives, and water-cement ratios on-site allows for tailoring concrete properties to specific requirements. ● Moreover, the process leads to time savings and increased project productivity. Concrete can be mixed according to necessity. Meanwhile, it also reduces waiting times for deliveries. ● The adaptability to changing demands in real-time enables adjustments to the mix. On the other hand, it guarantees to evolve according to the specifications. ● In addition, it adheres better to design specifications, confirming the structural integrity and performance of the final product. ● Above all, it contributes to environmental sustainability by lessening the carbon footprint associated with hauling concrete from a central plant. ● Lastly, the risk of premature setting during transportation, especially in hot weather, is minimized since the concrete is mixed on-site. Conclusion On-site concrete mixing represents a commitment to precision and craftsmanship. It underpins towering skyscrapers and modest residential foundations alike, highlighting its versatile nature. This practice reminds us that innovation isn't limited to labs. Well, it thrives on construction sites where glimpses of the future become tangible. Welcome to Pro-mix Concrete, your trusted partner for superior on-site mixing solutions. We take immense pride in revolutionizing the construction industry. Hereafter, we bring convenience and efficiency directly to your location. Moreover, our state-of-the-art mobile mixing units are equipped with cutting-edge technology and a team of skilled professionals.